As a California native and lifelong academic I have an interest in the future of the University of California, arguably the predominant public university in the United States. If you share that interest, you might read this City Journal article by Heather Mac Donald.
Mac Donald writes at length about the vast resources UC wastes on multiculturalism, to little effect. As she notes, UC is hardly a place overrun with discrimination.
Mac Donald also makes the point that under-qualified minority students admitted to UC in the interests of "diversity" do poorly. They might do well in another setting where they were in competition with students of more nearly similar ability, for example the CSU system in which I spent 30 years teaching.
It's a paradox, the UC system takes students who would do well in the CSU, so the CSU gets students who are under-qualified to compete there. The diversity mania has a cascade of negative effects that probably includes the community colleges.