I think the point that a lot of you Kyouji's behaviour supporter are missing is that no one compelled him to do all that and he's behaving like he is forced to coppe with it while he isn't. The author exaggerating him being annoyed and because of that mean to Nagi is the reason why people are hating on him. If you ask me it wasn't necessary.
Well in THIS story kyouji is an ass because of it. That’s the author’s idea and decision. As for nagisa, we readers know that he’s a lost fox from another world lol. But if u were in kyouji’s shoes, u would prolly be annoyed at the person wreaking havoc in ur home. I don’t hate nagisa lol, just defending kyouji ╮( ̄▽ ̄)╭
Lol at the people really hating kyouji. Imagine ur a boy, who grew up in an abusive household, then ine day a strange man appeared in ur home doing a mess. Who wouldn’t be annoyed right? Ur all just saying that coz Nagi is super adorable and u know his story as a fox