#but the landmasses on pyros are actually the remains of captured satellites and small planets that got a bit too close

[darthkvznblogs]

What does Thanos think of species that don't fit his worldview? Like the Pyronites, who live on a star and therefore are not wasting the resources of a planet.

Well, they may not consume the same kind of resources that organics do, but they still consume something. Living organisms (those that develop naturally, as opposed to manufactured synthetics like Geth or the Mechamorphs) don't just exist; they are born, they grow, they reproduce, and they die. Obviously, these functions take different forms for different species, but in the end, they still follow these rules in some way.

In a sense, a species like the Pyronites would be worse; the resources they require are even more rare than those of organics (who can typically share food somewhat safely and have a much wider range of habitats they can live in) so in Thanos' eyes, they're destined for collapse even quicker than the rest.

(Of course, that is the issue here; this is Thanos' opinion. And sure, many species throughout the centuries have ended themselves in a similar way to the people of Titan. But many have also found workarounds, solved their problems and avoided extinction - not that this knowledge would sway the Mad Titan. I think Thanos can justify pretty much anything he does in his crusade, because at the end of the day, he enjoys the killing just a bit more than he values the living)