Since we're imagining a very, very dumb country (America, evidently) where people are allowed to complain about others' clothing (I don't condone it), we should leave if we don't like hearing complaints.
Imagine if you will, a country where people order Chinese food everyday, and they are "celebrating diversity."; But when a teenager wears a Chinese dress to her prom, she's an "evil white girl," that has "appropriated another culture."