One of the rare moments in my head where Yukikko talks. Yukisama understands only partially what Yukikko is saying, as he’s not the ‘wise’ one - more like the booksmart one - and it sails right over Yukippe’s head because A) he’s not the brightest tool in the shed and B) he couldn’t care less either way.
Basically what Yukikko means is that no other creature has harmed other humans and the entire world more than human itself. Humans often overlook this fact though, and call 'non-humans’ inhuman AKA moral-less. It’s kind of amusing really.
And if you still wonder why Yukikko hates himself; It’s because he doesn’t have much against killing, even though he knows it’s wrong. He manages that because it’s his head and beliefs that control him, not his heart. He’s ashamed of having no proper heart to listen to. Therefor, he represents also Yukiki’s lack of moral and feelings. And that’s what he sees himself as - he never says 'I am’ or 'I think’ etc. because he doesn’t see himself as a real person. He says 'we’ instead, meaning 'The Whole One’ AKA Yukiki.
Thanks to Hanako though, he eventually starts saying 'I’ and learns feelings somewhat, even if he doesn’t understand them. He’ll never be completely 'fixed’ though.
MY GOD THE WALL OF TEXT I’M SO SORRY