#it's very easy to see ppl a specific way through fiction even if it's based on realistic aspect and/or real scenarios

[kendrixtermina]

You seem like pretty knowable about Edelgard lore and motivation, so I've been meaning to ask. What exactly was the catalyst that made Edelgard hate the Church of Seiros so much? I know they've done a ton of shitty stuff in general, but what made Edelgard dislike them personally? I looked on the wiki and it either wasn't on there yet or I just didn't understand it. (I want to be able to eventually explain it to my sister who so far thinks Edelgard is evil, she hasn't finished the AM route yet).

IDK if this is something one can be “knowledgeable” about I just played the same game everyone else did, I’m no authority I just like analyzing fictional works for fun.

And whoever added that recent lengthy edit to the wiki article… let’s just say their opinions are discernible.  But they might say the same about me. 

Good vs Sympathetic

First there are some interesting premises hidden in this question - why would a personal motivation be more convincing that a net negative impact on the world at large? It’s the latter a much better reason? 

Like there’s a big difference between saying “they had legit reasons for their feelings/actions” (you could say this even about rhea) and saying that someone’s a force for good. Being understandable and consistent isn’t goodness; IT’s just good writing, and “they can’t help it, of course they acted like this, look at what happened to them” is more an argument for someone being sympathetic/understandable than good. Murder or manslaughter? How much can we blame them for their bad deeds. 

You might have very good personal reasons to hate someone or something, and pursuing that hate at the expense of others could still be a very selfish thing. There are your feelings, and then there’s how you act on them. There are many ways to act on the same feeling. 

Conversely, it is possible to be repulsed by evil or mismanagement just because of its own wrongness/stupidity. If you read about how some evil deed happened to total strangers in a foreign country, you would still be angry and you might even vote, sign petitions or attent protests so it doesn’t keep happening. 

If the Church of Seiros is doing objectively bad stuff, is that not enough to oppose it? Not only does Seiros/Rhea rule everything from the shadows, she’s accountable to no one, and she’s doing a bad job at it. TWSITD are her enemies too but they’re running rampant under her nose and in the recent past, deposed the Emperor and assasinated the king of faerghus to install their own agents.

Rhea may not have intended to let xenophobia, inequality, corruption, obsession with crests and instability to fester but that’s still what happened - and people can’t file complaints because she’s ruling in secret and anyone who complaints in branded a heretic. Almost everyone in the cast has been affected by those issues - the “peace” at the start of the story is illusory. Also, this whole shadow war between Seiros and Agartha is being carried out on the backs of the ordinary people who have no say in anything. At least if you know who the king/lord is you know who to rebel against if there’s no bread.

It’s no good. And as the heir to the largest territory, Edelgard is one of the few people who have a chance to stop it. It’s not easy for her either, given that the empire is thoroughly infiltrated by TWSID agents who would never have let her butt touch the throne if she didn’t play ball, or at least not without a bloody fight that might well end with the empire in splinter factions, aafter all, her father had already been reduced to a puppet ruler (see what happens to Dimitri when he returns to faerghus - Arundel is said to mantain his own personal army)

And since it was one of her ancestors who sold out Fodlan to seiros for power, she might feel that it’s her responsibility to put it right.

The real power isn’t with the people or even the nobles and the rulers of the three factions - it’s with Rhea and TWSITD. They keep burning up people without end for their own causes that have nothing to do with the people themselves, they both see humans as “beasts”… Shouldn’t that be stopped? 

To stop evil is a much better motivation than petty personal grudges.

Edelgard’s thinking

The first thing to understand with Edelgard is that she’s a big picture thinker through and through. For better or for worse she looks at and decides everything based on how it will look in a history book a few centuries down the line. (For prime examples of evidence look at the Dorothea support or some of her lines after fighting Dimitri)

This isn’t to say that she doesn’t have bias or personal influences like everyone else, but she values and strives for objectivity. That means questioning herself alot (something you wouldn’t see that much on routes other than her own as she keeps the tough leader face on in public), it means putting what yields the best results over what she wants or likes, and it means looking at the greater whole. 

She doesn’t just want to get revenge on the specific people who wronged her; She wants to ensue that it never happens to anyone else. She wants to undo the whole situation that allowed for it to happen - even if that means postponing her own revenge and working with those she hates the most. This is very much her putting efficiency and the end result above her own feelings. 

It may well have been Thales and his henchmen who cut her open, but they couldn’t have done it without the cooperation of the corrupt imperial nobles. (likewise, they worked with xenophobic kingdom nobles who didn’t like Dimitri’s dad making peace with the foreigners to orchestrate the Duscur nonsense)

Why were they in power? How were they convinced to allow for such a thing and give Thales the ressources he wanted/needed? Because of the social system that Seiros set up so that crests are equated with power.  

There will always be assholes and evil people, but how much damage they cause depends on wether the system they operate in lets them get away with it.

Also, even when you look just at TWSITD’s involvement, Edelgard’s siblings were butchered to make her a mighty tool for the shadow conflict. Just as Rhea in turn did her own experiments to revive sothis and “regain all that she lost”

So even on the most direct level, what happened was a result of the shadow conflict. 

And it is instrumental to keep in mind that Edelgard wants to remove both shadow factions. 

Her beef’s strictly with them - she knew that the Kingdom and Alliance would probably fight her if she went against the church and was fully prepared to pay that price, but that’s a side effect of going where the enemy is - she handed out letters and pamphlets informing ppl of the church’s evils and asking them to choose sides. 

TWSITD have fearsome power and have infiltrated the empire, but they’re few. The Church got its claws in most local governments. Why not throw the power of the former at the latter, to take down the stronger enemy, and then take out the Agarthans when your power’s consolidated? It’s a decision not about whom to fight, but about whom to fight first. 

Also because of her big-picture thinking she looks at the absolute numbers. In her own words, she’s going for the path of least casualties. 

PPl tend to judge harm caused by action stronger than harm caused by inaction but actually the harm is the same. Acting to remove the two shadow factions will have a cost (the war) but not acting also has a cost - that the dysfuction goes on and on forever. 

She doesn’t particularly want power if it were up to her she’d have chosen a normal ordinary life and she says so on many occasions. But she can stop it, stop the endless sacrifice and dysfunction, so she can’t just let it continue and do nothing. 

Of course with that sorta logic you always have to consider how each action impacts the end result so you don’t destroy all you want to protect because you tell yourself that it will pay off later, after all ‘the many’ are just an abstraction for a lot of individuals. But Edelgard’s not really losing sight of that, she keeps looking to minimize the casualties where she can, she offers people a chance to surrender, you get some lecture questions where she’s genuinely considering what do with rhea if she DOES surrender. 

It’s worth noting that on her route, the war ends the quickest and only the Kingdom lands get significantly wrecked (and the Kingdom always gets wrecked even if it gets rebuild afterwards, it was already in a lot of chaos before the war even started). You have to fight the peeps you don’t recruit but that’s no different in the other routes. Claude manages to seize control of the Church without going through the knights so he manages to pull off an at least equivalent end result (both shadow factions removed, society permanently changed) while offing fewer of the named characters, and lets not fail to give him credit for that,  but he might not have, if Edelgard hadn’t conveniently removed Rhea and just generally blazed a convenient trail for him to, in his own words, “finish the job for her”. Taking in the church with Rhea still in place didn’t work out too well for poor Dimitri, I seem to recall that she used the poor man as a meatshield and set his capital on fire - which is why Claude wisely didn’t touch that hot potato in any route where he doesn’t have Byleth as a bargaining chip. 

Of course that said, going too hard on the comparison would seem to miss the point. While Claude’s and Edelgard’s routes are about their respective grand visions for the future and their badassery as great inspiring leaders, the Church and Kingdom routes are more about people coming together to weather difficult circumstances. Dimitri isn’t really cut out to be a good ruler; but the beauty of his story is how he eventually does his best to become one anyways through the aid of his loyal friends. It’s an underdog story. 

If your sister prefers that sort of story (or just Dimitri himself, as a more emotional, relatable type of hero and a well-crafted, compelling and memorable character) that’s just her personal taste/ good right. 

Edelgard’s personal biases

She surely has a bit of “broken pedestal syndrome” going on, the very human tendency to absolutely reject things you once idealized once they’re proven to be flawed, to assume that if you were lied to often enough, then everything must be a lie… she sure reads what she learns of Seiros’ past actions in a bad light and assumed that Seteth & the others are guiltier/ more complicit than they actually are. 

The problem with Rhea is that she’s selfish, not that she’s a dragon. But if she were the only example you know for what a dragon is like? You might not be too fond of dragons. It’s not like she protests if Byleth spares Flayn and Seteth. 

She doesn’t really know Rhea’s motivation so she has to judge her by her actions and the results of those, and her actions, for all that they come from fear and loneliness, are indistinguishable from power lust by the time that Rhea’s subjugated 30 generations of humans for something their remote ancestors did 1000 years ago. Would she ever have let them go? 

So it doesn’t matter that she only got the partial story on the relics, it’s not the relics she took issue with, but the current state of the world. also Rhea is the one who erased the true records. So the 10 elites totally had it comming, fine - but Rhea’s the one who disseminated the myth that they were heroes in the first place. 

Claude only gets the truth by squeezing it out of Rhea and even then only at the very end, ppl who say that Edelgard “acted on false information” act like Claude just stumbled across the truth with minimal effort. That’s actually more unfair to Claude than to Edelgard if you ask me.... he’s a man who has gathering info as his top priority 24/7

Edelgard’s certainly more steeped in the perspective of her home country where the church is awarded significance and if it turns out to not be good then it’s utterly vile.  Claude has the sort of more detached perspective that he has because he happened to come from another country. Edelgard’s aiming for detachment but that’s only possible to a certain extent when something ruined the lives of nearly everyone you know

At the same time whatever her personal sentiments may be (and im not gonna deny that she does hate the Seiros religion), as far as her actions and decisions go, the engage conversation she has when you have her fight Rhea at the battle:

Rhea:

No matter your reasons, I cannot permit you to go on living any longer!

Edelgard:

The feeling is mutual. I must put a stop to your reign of tyranny!

Rhea:

You must know what a fool you are. The greatest of sins is to make an enemy of the goddess herself!

Edelgard:

I have only made an enemy of the church, not of the faith.

She says in several supports that she personally considers relying on the goddess to be an overly dependent attitude that doesn’t do people good, but that’s just her opinion, she’s not stopping anyone from praying in the privacy of their homes cause thats none of her business and she’s not a tyrant (see what happens if you recruit Marianne or Mercedes, her support with Manuela or the Marianne/Ferdinand support on the CF route, which reveals that he’s actually a believer.)

She just wants the Church, and Rhea specifically, out of politics… exactly what we have in any modern-day country that isn’t Saudi Arabia or the Vatican. 

Megalomania seems the most likely or politically expedient thing to claim but in the end her beef’s not with Rhea’s reasons but the results of her actions which is stagnation, mismanagement and repression. 

Your Actual Question/ Personal Reasons and Catalysts

Honestly? If we’re talking on a strictly emotional/personal level? (As much as that’s an incomplete picture with such a reason-driven character)

She probably bawled for the goddess to save her and her family down in the dungeons, again and again, and no one answered. 

She spent much of her early life just being dragged around, first being kidnapped by Arundel and held captive in the kingdom, then she was thrown in a filthy dungeon where she endured relentless pain and could do nothing but watch as her siblings died one by one. 

She was utterly helpless, a passive plaything of destiny - and then she decided she was done being passive and letting the universe kick her around. She was going to be proactive and do all she could to be in control of her own fate. 

See also the inspiring speeches that she gives to Petra and Lysithea at various points - “Don’t surrender yourself to your fate!” 

Blind reliance on the faith, to her, represents that very surrender, so she rejects it. 

This fear and rejection of being helpless and having zero control is also one of the reasons why she consistently chooses death on her own terms over life on someone elses’. 

That would still not be a valid justification if she wanted to, like, stop everyone from praying, but that’s not what she’s doing.