A little known fact is that the American South is almost the only slave society in history in which the slave population grew at a significant rate without import of new slaves.
Every other slave society of which I’m aware, not just those in the Caribbean, required constant importation to keep up the numbers. Slaves just didn’t reproduce, and they had a much higher mortality rate than the general population.
American slaves did reproduce, and at “population explosion” rates. I don’t think anyone has ever explained this anomaly satisfactorily.
I think the average American Slave owner was probably more of a paternalistic kind of overlord and a good businessman.
Probably this is connected in some way with the curious concept of being a Christian and a slave holder.
Well cared for slaves not only live longer and produce more, they also reproduce.