Equality of Opportunity vs. Equality of Outcome
Equality of rights does not mean equality of results. I can have all the equal treatment in the world on a golf course and I will not finish within shouting distance of Tiger Woods.
When arbitrary numerical "goals" or "quotas" under affirmative action are not met, the burden of proof is put on the employer to prove that he did not discriminate against minorities or women. No burden of proof whatever is put on the advocates of "goals" or "quotas" to show that people would be equally represented in jobs, colleges or anywhere else in the absence of discrimination.
Tons of evidence from countries around the world, and over centuries of history, show that statistical disparities are the rule, not the exception-- even in situations where discrimination is virtually impossible.
Anonymously graded tests do not show the same results from one group to another. In many countries there are minorities who completely outperform members of the majority population, whether in education, in the economy or in sports, even when there is no way that they can discriminate against the majority.