Slavery in the South

As part of the current discussion of the use of the Concrete Flag to express one's Free Asshatitute, in particular in relation to a volunteer firefighter who stuck one of the flags on the fire truck turing the Independence Day Parade in a small community in Outstate Minnesota, I saw someone state that there were more slaves in the North than in the South. Specifically, the individual, commenting on a the flag story on a local news site, said: Now, this particular joker was trying to say that there were lots of white people who "may as well have been slaves" in the North, or words to that…