People like to put the south under a magnifying glass just as much as they put the Northeast, Texas, or California under the same thing.
But I feel that the south has become the very thing they despised not all that long ago (at least in economic terms).
I don't think that the South has ever been really anti-big business. Instead, the reason that they were so Democratic for so long was that they were viciously anti-tariff. The South's aversion to taxes has endured to this day, pushing them firmly into the Republican camp.