Republicans and Romney have bigger troubles than Obama hitting 50%. Remember country singer Toby Kieth's popular ballad defiantly lamenting the plight of the working-poor white southerners being refered to, by the wealthy, as their white-trash.
Romney's remarks also take a shot at these hard working white voters below the Mason-Dixon line. What makes it worse for Romney and the Republicans; is that they got lumped into the hand-out loving 47% by Mitt Romney, a very wealthy Northern-Carpetbagger.
Once these southern voters come to realize this; the down-ballot Republicans are going to pay the price. The super-pacs money supporting Romney could become toxic, forcing Republican candidates to shy away from their donations. The Democrats will be more than eager to point out the disdain Romney feels for this major block of southern voters.