VAuroch is pretty obviously of the opinion that admissions criteria are poor measures of talent, and that in particular minorities are more likely to score poorly on the admissions criteria for reasons other than talent.

Even if that were true, affirmative action is based on admitting a certain percentage of blacks. Thus unless he (or you) are claiming that the average black has more talent than the average white, the amount of talent a black needs will still be less than the amount of talent a white needs.