>>508427593 (OP)none because white people are happy being white people
insults only work if the person you're insulting believes your insult. if you tell an ugly person who gets no bitches that he's an ugly incel he gets offended. if you tell a chad who has multiple bitches that he's an ugly incel he'll just look at you like you're a dumbass
from a western worldview perspective, black people have been under performing significantly compared to white people; they have contributed a lot less to literally all aspects of a western society, be it sciences, medicine, technology, art, etc. so calling a black person out to be black triggers an inferiority complex in most contexts.
the only contexts in which calling someone a nigger won't offend them is stuff like rap music, jazz music, or other fields where they were prominent black figures who outperformed their competition.
meanwhile in most contexts if you call out a white person for being white it triggers a superiority complex. so literally no matter what you say, it just makes you look jealous and pathetic and it just makes the white person laugh at you.