There are black colleges, black chamber of commerces, Congressional Black Caucus, black TV channels, etc., etc. These could be construed to be naturally self propagated segregational practices.
Yep. And every one of them is inherently, institutionally racist. To defend those things, while simultaneously decrying racism and segregation is hypocrisy.
If certain folk want to rant against racism all the time, let them do away with all those explicitly 'black' cultural phenomena.