Except preferential treatment backfires.
People will think “if XYZ group has a handicap maybe it’s because XYZ group is genetically inferior?” XYZ members themselves will think that and it will subconsciously affect them. People around them will think that and it will subconsciously affect their opinions towards them.
If you point out that XYZ group is only handicapped because they’re statistically environmentally disadvantaged, then it follows, why not handicap everyone with that disadvantage, or any comparable disadvantage? Why not handicap ABC minority? Some members of ABC will be jealous of XYZ and subtly discriminate against them (for this reason; these members would otherwise).
It creates the background conditions it seeks to destroy. Instead, handicap on things like health and income, which are more obviously fair and necessary (most people can accept that bad health and income are an especially serious disadvantages in today’s world).
Yes this is true, that can and has happened. I don’t think it’s true as rule, but it’s a valid point. Still, the most important question is what is the alternative?
We are closer to ending sexism and racism than we were 70 years ago before any affirmative action existed, right? Who’s to say that all the backfiring and unintended consequences that have happened aren’t better than the parallel universe in which maybe slavery still exists? Would it have happened faster with no quotas or boosts for groups that were historically discriminated against? Maybe yes, that’s possible, but we can’t know. What we do know is that we’ve made forward progress, even if imperfectly.
The thing that tends to be forgotten when people talk about affirmative action being preferential treatment is that the previous ‘in’ group was already getting preferential treatment, and maybe still is. We did not start from a level playing field. The core idea is to try to balance the pre-existing preferential treatment out. Unless you can resolve the cause of that, an easier way to attempt to handle it is to try to artificially make the preferences equal. The idea is not to give preferential treatment as an outcome, it’s to remove preferential treatment. This is related to how discrimination is not racism, and why positive discrimination is different from negative discrimination.