The distinction we seem to be groping for here is between what’s public (not government) and what’s personal. Race should not be a deciding factor in anything other than the handful of cases where it is pertinent. (Such as if I’m conducting a market analysis for a chain of tanning salons – I would be a fool not to take racial demographics into account.)
But if a group of blacks - or a group of whites - feels more comfortable associating only with each other, that’s something that only time will cure – if it in fact needs curing. The people I’m close to all happen to be white – which has more to do with growing up in a small town with only three black families than with any segregatory mental attitude. I was very close to an interracial couple, he a retired black Army master sergeant from Bogalusa LA who was the only honest used car dealer in town, she a former German war bride who taught me half of what I know about business procedures when she was my boss years ago. If I don’t like rap music, that’s taste, not prejudice; I can hear the hurt and anger it expresses, but don’t care for the style in which it does it. I don’t see this as any more prejudiced than a lack of fondness for polkas makes me anti-Polish.
If people choose to associate with those with whom they have most in common, that’s human nature. If it happens to be those of their ethnoracial background, that’s the product of (sad) history. It’s their privilege. Otherwise you get “everything not forbidden is compulsory.” (A useful new strand would be how school administrators seem to espouse that philosophy!)