If Slavery had not existed when the US was created there would be very few Blacks here and had not they been exported here then they probably would have been killed or died of the barbarism that still exists in Africa.
From a genetics point of view, I believe that the inter mixing of races is a good thing.
So slavery is a good thing in that less people killed, and an genetically improved human.
So you wouldn’t mind being a slave, huh?
Nonsense.