[MayflowerMadam]

“His video advertises his idiocy.”

I’m not sure about that. Was I ever taught in school that in America’ south a great percentage of slave traders and owners were black southerners? Of course, I learned that later but don’t recall hearing that in school. Ditto that it was Africans rounding up, and selling, other Africans.

[PallMal]

I know people from the West Indies who are surprised that most Americans didn't know that blacks in America owned slaves.

They thought it was just common knowledge.