Even a liberal site confirms that blacks were slave owners, that Blacks in Africa sold Blacks as commercial property, and that the White Man in America, freed Blacks as property in America - as well as the rest of the world.
To paraphrase President Abraham Lincoln, in reviewing the carnage and death of the American Civil war, and the discussion of Slavery Reparations - "the debt is paid in full". The hundreds of thousands of Americans who sacrificed their lives to free the blacks, paid whatever debt was owed - then and forever.
Sorry, but that gravy train has already been paid. You will have to get a real job, and work like everyone else.
Needs to be said often, just remember that speaking the truth is not very popular these days.