You seem to want to ignore the very real sins of our past. Not just the south's past, though they fought for it longer, but America's past.
It took good people to change minds, and the move shows a couple of them. Don't try to set it in modern times as if it is an afront to YOU, it wouldn't be legitimate in these times. But it was legitimate in the setting of those very racist times. Don't white-wash it as if it didn't happen.
Good point. Though it doesn't address racism, The Scarlet Letter, for one example, shows its region in a far from flattering light.