Because whenever you try to target class, it ends up excluding on race.
Every single time it just so happens that white applicants hoovered up all the available program benefits and NOBODY ever knows why!
Not to mention the racial wealth gap, it is impossible to achieve racial equality so long as the same amount is being given to everyone. All that's doing is maintaining the current wealth gap, it does nothing to close the gap.
Equality will not be achieved until white people can fucking let go of the fact that black folks have to get stuff that white people will not for everyone to be on the same playing field, and that's just economically, we're not even talking about how "just hire the most qualified candidate!" only ever seems to be an issue when the qualified candidate is a PoC.