Racial equality is a nice idea on paper. Everybody get's to work together if they're good enough, you can't single out people for something beyond their control like being born in the wrong family (applies to class and religion as well). Problem is, when you try to offend someone or when you take offence, you will most likely be attacked or feel attacked for the things that make you the most different from other people. Fights among different racial groups will at some point lead to racial conflict.

It's interesting to question whether a world without race-pimps exists, since it's just way too nice of a position to have - you just say that the majority is keeping your group down and just play the numbers game. You'll be right eventually.