Why the hell you Americans divide white/black everything?

I’d like to take the opportunity to ask what the hell this community is about. I saw it in Reddit and I didn’t get it either.

Is this mocking white people, kinda like “first world problems” kinda deal? Like they are so privileged, they are detached from reality, and we need to mock their detachment in a specific place where everyone joins, points fingers at them and laugh?

I have no problem with that, I’m really asking. If anyone is wondering, I’m a light skinned Latino who grew up being called white in his country but then was called dark skinned in the US.

It’s the white version of black people Twitter