@Cutless
First of all, what luiz said. Are you sure you read my post? Because what he replied can also be found within it. And that AA aims at those that need help the least further increases the potential for unfair disadvantages.
Seriously, the first statement of your post, which you bothered to bold and write cursive, is factually untrue. You need to understand that.
Secondly, that racism somehow causes economic costs is probably a reasonable assumption. To just shoot this out there in the inflated manner you did and to use it as some universal justification for AA is not reasonable however.
Your other assumptions about AA, that it will make the world a better place, meritocracy, save the oppressed etc, are vague and IMO quit spurious as well and my post (sorry if I seem a little obsessed with this post, but I feel it contains all key arguments against AA while considering a pro-AA stance) offered IMO good reason to not assume so in such a seemingly reflexive manner.
The only point I take no issue with is that AA has little costs. But only in the sense of economic costs. However, naturally, economic cost is not the ultimate criteria to policy decisions, or at least should not be. What serves the people in the best way, what is "right"/moral does. And there AA IMO fails.
Slightly....

But yes, SE (and God why did no one introduce this earlier?!) has significant advantages over race. I myself am also arguing with the assumption that racial AA would be replaced by SE, not just abolished. Its only drawback is that it does not benefit
all members of a race (that is also those which need it the least), but only those which need it the most. But well, I don't actually see this as a drawback, but another advantage.
Oh come on, what a smug statement to make. "It is so easy, but they still don't want to surrender to its awesomeness". Maybe it is because it simply sucks?