Segregation has already happened to a large degree, with the housing bubble. Blacks have been priced out of many places, and as a racist bonus, they have been forced by higher prices in the inner cities into taking on more debt than otherwise required.
White people move into the burbs largely to get away from the niggers. Once there, they work themselves to death in trying to afford the huge mortgage and travel costs. So, Blackie is getting his revenge on Whitey. Stay tuned.