I think I know what happened here. Curtis decided to sing “fucking problem” by A$AP rocky at karaoke because he can say

I’m the ngga, the ngga n*gga …

Like an edgy 15 year old. Then he heard A$AP rockies bar:

they say money make a ngga act nggerish, at least a ngga ngga rich

Got mad at the idea of black people having money and cultural clout and then posted this.