#i dont think the two actually hate quirkless individuals

[bibibbon]

Overhaul (and partially Tomura) viewing being quirkless as worse than death is kind of just glossed over.

In their return, you'd think a lot villains against OFA would be frustrated that Izuku & All Might were handed their Quirk.

If what you say is correct anon than this has been glossed over so well that I can't even remember it.

When were first introduced to overhaul he held the strong belief that quirks were basically illnesses and mutated diseases that tainted mankind.

Overhaul isn't actually confirmed to hate or like quirkless people and individuals. Now that I think about it overhaul and what he does is actually hypocritical and that's and integral part of his character. To that one anon who compared spinner and amon I think a much more better comparison is amon and overhaul!!

I would expect overhaul to probably like and tolerate being around quirkless individuals a lot more since they are free of the disease that he claims to be quirks but you can argue that even overhaul sees quirkless individuals as useless seeing his expression as he himself became quirkless due to shigaraki.

I would imagine that overhauls reaction to learning about izuku and his situation would be one where he thinks that izuku has been infected by the disease that is quirks and not him outright hating izuku for formerly being quirkless (that's not saying that he likes izuku quirkless though)

Shigaraki on the other hand doesn't cannonically have a problem with quirkless individuals. Like @mikeellee mentions that shigaraki actually uses a lot of quirkless/ pre quirk fashion and stuff. Mikeellee also mentions a scene where shigaraki found out that Izuku used to be quirkless and simply didn't have a reaction of hatred or disgust so I doubt that shigaraki would hate Izuku for his past or for him gaining OFA.

However it can be argued that the idea that the quirkless are useless is very popular within the MHA society and that it creates heavy bias and probably a strong foundation of quirkless discrimination if done right