But its why I threw up the book from the deans of princeton and harvard, which points out that they find greater success than other racial/ethnic groups after graduation despite having the lower GPA at graduation. There are other arguments, and im sure plenty of them are valid. I just wanted to point out that the main one i've heard is addressed.
I actually registered (after simply lurking for quite a long time) because I am a staunch opponent of Affirmative Action.
The affirmative action recipients sometimes end up more successful even with a lower GPA at graduation because AA continues even after graduation.
AA gets someone with a lower GPA into a college that they most likely cannot handle (because they are not intelligent enough or they were never prepared enough.
That person (if he does graduate at all) graduates with a lower GPA than the non-AA people at the school. He then applies to medical school.
AA gets this person into a medical school that is beyond his/her ability. This person then graduates with a lower GPA than his peers at the med school.
AA then gets this person a good job, that a non-AA applicant could not have gotten at that GPA level.
AA starts early and keeps AA-recipients from ever operating at the level that they are most qualified for. They are always competing with people who are smarter than they are.
I wish I could find an article that I used to have on my computer. It showed that blacks were unhappy because they almost never became senior partners at law firms. It was because of the process I just outlined, which resulted in the prestigious law firms hiring blacks that simply could not handle the job at that level, and thus quit the job because they could not succeed.
Obviously the field of law is not medicine, but I bring it up as an example of another profession that is closely related (ie. going to professional school after college, then entering a certain specific profession).
Affirmative action is not fair to it's recipients or those who are not recipients.
[EDIT]
And people who realize that AA will be there for them don't have to try as hard, they have nothing to motivate them. They don't need that 3.8 for med school, because they only need a 3.2. Well, that is a huge difference. (And check out the MD acceptance rates for minorities and you will see that a 3.2 has a MUCH higher chance of getting into medical school than a white or Asian student with similar stats.