Not that unspoken these days with people whining that the 'wrong blacks' are getting into Harvard *LOL* Too stupid. People come here and they really don't have time to immerse themselves in racial demagoguery. They want to succeed and make money. Black people from other countries get discriminated against just HOW it's dealt with and what sort of attitude.
A long time ago, black people had to fight for everything they wanted. It's no one else's fault but today's black Americans' own fault if other immigrant people come here and pick up where the old folks left off. Nothing stopping anyone from doing what they want in the USA. It's not the black farmer I read about who opposed Mugabe and is now taking a dirt nap.
What you say is true, and affirmative action has ended a lot of potential college degrees from being earned.
Many times people who would do alright at a state or city college are through affirmative action thrown into a school like USC where they my not be able to compete. Many drop out never earning any degree. (which to me is a horror of a result)
That is another unspoken topic and IMO this form of affirmative action has kept the blacks from degrees they would have earned.
I don't like the way that happens at all.