Racism towards Afghans?

Why is there so much blatant racism towards Afghans in this sub? Is it like this in real life as well? I haven't even seen alt right people talk about Muslims as crudely as people around here speak of Afghans. It's so ironic because the same people will go on and on about ummah unity but literally treat their own neighbors as subhuman.

Edit: Aoothubillah, the comments are even more egregious than I anticipated. No wonder our people are in the gutter smh