I know…in fact, the slave trade in Africa was largely run by North African Arab Muslims. Black, subSaharan African tribes would war with each other, and the winning tribe got to pick the “best” of the losers for their own personal slaves, and they sold the rest into slavery to the North Africans. They in turn sold them to Europeans, who in turn sold them to North Americans.
The North (you know, the ones who went to war with the South, supposedly to free slaves?) had a very lucrative business going with slavery. They convinced Southern plantation owners that African slaves would be better than the white indentured servants they had been using, because the indentured servants would be free after a set period, but slaves would never be.
The South was on the receiving end of the slavery issue; many, many others made a very big profit on slavery, everyone from the winning black African tribes to the North African slave traders to the Europeans to the Northerners in America.