This article by Michael Lind in Salon.com gets to the real matter of the Southern Strategy. It’s not just about race, it’s about class and caste as well.
http://www.salon.com/2012/10/10/slave_states_vs_free_states_2012/
“The traditional Southern regional economic strategy, then, depends on the control by Southern employers of a huge pool of low-wage workers with little or no bargaining power in their dealings with their local bosses or the foreign (that is, extra-Southern) investors and corporations who are invited in to exploit their labor.”