That is a double edged sword.
If that happens and it never will, maybe the descendants of Civil War veterans that suffered and died freeing them can sue the black population for pain and suffering.
But it will never happen. The only reason this idea gets rehashed is because liberal politicians are catering to the low IQ, low class people that would theoretically benefit. And the low IQ people that believe this will happen are the same ones that think other people are the source of their failures in life and not themselves.