Comment by PaulDavisThe1st

It isn't legal for individual university spots either.

What a university can do, or any form of corporation in the USA can do, is to announce goals to have its body be made up in roughly the same was as the general population, according to some demographic metrics.

So you can't say "student #68 must be female"; you can say "we are aiming for a 50/50 male/female student body" and then take steps to get there.