Yep slaves were taken away from slave owners. That is a fact. It is also a fact that they were 100% legal property. The Constitution requires that the federal government pay for any property taken.
In any taking of legal property the federal gov is to pay the property owner. Slave owners are due the value of each slave plus the value of the offspring they would have had.
Reparations are due ONLY to the descendents of slave owners.
Because it was legal to own a slave no Reparations are due to the slave descendents.
The blacks that are alive today are not affected by slavery in any way whatsoever.
If you can make a claim for something that happened to your ancestors then the people in the southern states are due reparations for the civil war as the north invaded and forced them back into the union.
The Confederate states are also due compensation for the property taken in reconstruction which was ruled illegal by the courts.