Freiren fans just cannot comprehend that the problem people have with the way the show writes the demons is that it's contradictory and extremely flat. They're consistently shown to have emotions and moral reasoning, and yet the text simply claims they don't and moves on.
i always found the way frieran wanted to have its cake and eat it too when it came to the demon race a bit jarring. they're sentient and capable of reason but also still pure evil and frieren is repeatedly treated as justified in her prejudice towards them.