>the clearest evidence we have of anyone doing that at scale in modern times is DEI programs in college

Congratulations you found the one place where a black person might have an advantage. Meanwhile virtually every other aspect of American society disadvantages black people and the supreme court ruled against those colleges.

http://www.racialdisadvantages.com

College admissions and the job market are apples and oranges. It isn't actually safe to assume the same thing must be happening in both. It isn't. There's an unofficial affirmative action favoring white people across much of the job market.