The thing is, his father's obsession is likely why he's so against humans. He knows that devils can be lowered to their worst level just to get at a human. He does not hate Iruma, or even humans.Glad to see that people's theories about Narnia not being so bad last week were proven wrong. This man is a despicable racist, he hates the idea of hybrids, his issues with his father stem from no moral high ground. His racism just happens to occur in a way that benefits Iruma at this moment.
I wouldn't have it any other way. I love two villains who come into conflict not because one of them crosses some moral line the other won't, but because their two different flavors of evil are incompatible. It makes for such a fun dynamic.
and it's not racism it's xenophobia, buzzword billy