Quote from CaptainObvious:
Most of these cities listed, especially those in California and Flordia, did not export jobs. They imported slave labor. Slave labor, while cheap for those paying the slave wages, becomes very expensive for the city's and state's that must pay for all that free stuff that comes along with supporting the slaves and their families. Eventually they system breaks down and you get what we're now getting. Slavery doesn't work, whether it's for cheap wages or votes. It just isn't a system that can last if you're going to give any human consideration to the slaves and their families. Now if you pay them nothing, kill them off when/if non productive, then you can build pyramids for thousands of years before the wheels come off.