Looks like you don't know your history. Castration was a common form of punishment during slavery to keep you folks in check.
Clearly not in the USA when "growing slaves" was seen as preferable from buying ones fresh from Africa.
The estate born slave was conditioned into slavery. The free born were always a run away threat and more likely to rebel. And even if they didn't were more likely to malinger. In addition, less accustomed to the harsh conditions on the plantations, more likely to die or commit suicide.
So the planters encouraged the slaves to breed and those who were good at it were rewarded.
So druggie castration wasn't a feature within the USA. And you know this well based on your periodic trips to Newark.