Negroes were migrating from the Southland to the North in the 40s and 50s. They were becoming the new Immigrant class and working their way into mainstream White society, just as generations of Irishmen and Swedes and Czechs and Chinese had done. Then came LBJ and the War on Poverty which put a lid on their advancement and enculturation, permanently walling them off from the mainstream society, walling them into their urban ghettos. Instead of the ghettos being a steppingstone to the suburbs and uptown they became Reservations kept under control by the Welfare firewater of the do-gooders.
"I'll have those n-words voting *democratic* for the next two hundred years."