They would probably need to pay a little more than 5$ Comcast/Hewlett-Packard style, and if there were even 10 slaves back then, today it would be 30000 descend

They would probably need to pay a little more than 5$ Comcast/Hewlett-Packard style, and if there were even 10 slaves back then, today it would be 30000 descendants. If there were 1000 slaves back then, it would be 3 million people today. Paying each even a measly thousand would require 3 billion dollars just for compensations, without any other investments or programs.