We're stuck with a math problem. If you admit purely based on test scores then black and latino applicants would be significantly underrepresented and non-Jewish white applicants would be slightly underrepresented. If you address these problems by insisting on a full balancing then you're going to have to reduce Asian and Jewish admittance. But increasing black and latino admittance at the expense of non-Jewish white admittance when the latter group was already underrepresented is not only the same kind of quota system but not even satisfying the goal of proportionate representation -- and that's the one that seems to be happening. So what do you want to do?
Arguably, the problem of underrepresentation became already unsustainable during Affirmative Action by the classification of African immigrants as black. Because the latter displace African-Americans who do worse in test scores than Africans.
Addressing the underlying barriers preventing blacks/latinos from getting into elite universities, rather than trying to fix the symptoms by instituting illiberal policies like reverse discrimination.
Then you need people to stop getting mad at universities when admission based on test scores causes those groups to be underrepresented. They're not the ones who can fix the test scores and nothing is going to fix them before the next round of applications.
break us colleges into tiers based on academic rigor. assuming you met XXXX standardized test score you are automatically sorted into one of the appropriate schools at random on your 18th birthday.