I understand affirmative action specifically for blacks and American Indians because of the long-term legalized oppression (whether it actually works is questionable). But I don't understand it for Hispanics, who were never treated legally different from whites (at least not on a large scale). I'm sure some Hispanic migrant workers had a tough time, but then again so did Irish and Italian immigrants toiling away at factories in the cities when they first came over. And so did the Chinese working on the railroads -- they were treated abhorently. Yet Chinese don't get any affirmative action today but Hispanics do. Well, Asians generally have a culture which really values education -- that is the difference.
It has nothing to do with oppression, that is a common myth. It has to do with getting the number of students in a school closer to their comparable percentage in the general population. If one group does that on its own, then its not needed. Thats the theory behind it anyways. Which makes you wonder why in mostly minority areas they dont do it for whites.