I moved to Georgia after having been raised in Wisconsin, living there for nearly 4 decades. Millions of people in Georgia today were born in other parts of the country or perhaps have moved there from other countries and become naturalized citizens. Why should they be subject to specialized scrutiny 50-60 years after serious institutional discrimination last existed in southern states?
Seriously, if there ever was an equal protection claim sitting right there in the strike zone, waiting to be hit out of the park, it would seem to me to be a claim by a resident of one of the subject states challenging the special scrutiny applied to their states in 2011.