Blacks make up almost 13% of the US population (https://en.wikipedia.org/wiki/Race_and_ethnicity_in_the_Unit...) but only about 3% of the population in top-tier schools in the US (http://www.forbes.com/sites/schifrin/2015/12/20/diversity-at...).

Now, to me, this doesn't really seem like preferring non-whites to whites. Why does it seem that way to you?