This madness should not even be up for any discussion, what about the black slave owners. Would their black descendants be paying other blacks who's forbears were slaves? Native Americans paying for the salves they owned? All blacks, or just the ones who are 100% black who can prove they had slave ancestry? What do you get if 25% black like Meghan Markle?
It's all the Unions fault and especially that white supremacist Lincoln. Slaves could have been freed by buying them out like the Brits did in thier colonies in the 1830's, It cost a fortune then but preferable to the 600k+ lives in the civil war. They could have been compensated at the time as well, 160 years is too late- they are all dead!