This is so ridiculous, I can't even.
Why should white people in America pay for something their ancestors did? If my greatgrandfather did something wrong, I ain't responsible for it. And how are they going to prove who is a slave descendant and who isn't? Not all black people in America got there unwillingly.
Also, they have been given full equal rights about 50 years ago. So if people of all races are equal, the improvement of socioeconomical status lies in their hands. Beyoncé and Oprah are black and yet incredibly rich and successful, so you can do it if you really want it.