[Polybius]

"Any bank in that era likely did business with wealthy people who owned slaves," he said.

Any African who lived in that era belonged to an African tribe that practiced slavery.

White slave traders did not run around the African West Coast chasing down slow Africans. They bought African slaves captured in African tribal wars by other Africans.

[clearlight]

Good point. It also bears noting that only a tiny percentage of Americans alive at that time ever owned slaves. The popular liberal notion that every American with White skin benefited from slavery just isn't true.