Do you imagine that those laws would have stayed intact, had the Confederacy successfully seceded? The Civil War concealed the fact from all but the most superficial students of history that American-pattern slavery was a dying institution. Even had the Confederacy gone independent, it would have had its own history of emancipation in lockstep with mechanization. And there would not be a blame-the-Yankees culture that built an inappropriate sense of tradition around persistent racism. Jmo. cn
Absolutely, slaves were actually becoming less profitable to plantation owners with the invention of the cotton gin, followed by other mechanizations. The northern factories were using immigrant labor far worse. The work conditions were beyond terrible and the pay was a mere pittance. The south was already beginning the idea of freeing slaves, then paying them to work the fields. Following the northern model they would no longer be responsible for clothing, housing, and feeding and would be paying less than what a person could pay for those items themselves. The number of immigrants coming into the north forced people to work in those conditions.