They said that they either feel lesser or above. (Though this might point at a different problem; I'd hope one could enjoy the company, really enjoy it, of both sets of people.)

He said that can feel either lesser or above so there's nothing arrogant about that.

> Why are you so arrogant

Assuming they are, just for the sake of the discussion: what kind of answer do you expect to this question? You think someone who is arrogant has a theory of why they are so and are willing to share it? I would expect they are mostly blind to their own arrogance. Can be useful to point it out.

I guess it was just a rhetorical question. But it feels weird. Do you think it can possibly do anything else than create hostility?

Did you read until the end? I wrote I either feel lesser or above. It works both ways. Arrogance is lived experience, I met a lot of people in my lifetime.