I don't agree with the OP, but I also don't agree with calling affirmative action "racist." Racism isn't just treating different races differently, a typical definition (wikipedia) is "the belief that inherent different traits in human racial groups justify discrimination".
Affirmative action is the opposite, it is based on the idea (flawed or not) that 1) groups should be treated the same, 2) the current situation is that they are not, and 3) the most effective way to move things toward equal treatment is to compensate by giving extra advantages to those who are otherwise disadvantaged due to racism.
Whether or not you agree with this, it is not racist. But it does indeed distort the free market, which often is a bad thing.