Maybe that's true for about 1-2% of the population, but she's acting like a white liberal Democrat in the Oval Office would be popular in the South because he's white, and it has nothing to do with the region's political ideology.
As someone pointed out elsewhere, John Kerry did 10% points better in Louisiana among whites than Obama, even while Obama was romping to a win nationally and Kerry lost. That's an actual data point for your proposition.
Race had nothing to do with it !
John Kerry spoke french and had an appeal to the Acadians.