⁹You can't overanalyis something if you refuse to analysis the content on screen in the first place, the fact the Demons are an outside force doesn't change the subtext and presentation that they are a conquering force with an aristocratic mindset, happy to commit genocide on a whim

That subtext doesn't scream "vermin" who are misunderstood and just trying to live, it screams colonialism

Maybe you just didn't read the Manga that outlined the full extent of what the demons had been getting up to, but even if you only watched the anime the obvious conclusion is the Demons are a conquering superpower and force of nature, not an allegory for different ethinc groups who need to be trampled underfoot

Also if you judge a work of fiction by whether fascists like it, then I'm sorry you're not gonna be allowed to like anything

Fascists are parasites who can latch on to Star Trek for fuck sake and you want to sit there and point to them as if that makes your argument? I don't care about fascists and their incoherent interpretations of a slightly problematic work that contains an obvious class allegory