Why would white southerners pass laws that control the movement of african-americans?

Hey there,
The answer is -They would quickly lose all of their workers.

Hope this helps :))

~Top♥

Back then, they didn't want to lose the slaves because they were the way of getting money sorry if its wrong the question wasnt detailed enough

He advocated for a separation of powers of the government and the ones enforcing the law.

The answer is crop yield.