"but those states that consistently elect republicans are also some of the poorest in the country."
That shows personal income is not a factor as far as people's affinity towards a political party is concerned. The dem. party is known for raising taxes and soft on crime. In the south, gun control laws are very important. A lot of people perceive the dem. party as being too african-american friendly. So, there are many factors involved in choosing a political party. Virginia is predominantly a rep. party state. However, we have had two dem. governors in a row, and the virginians elected a dem. senator in the last elections. IMO, there are a lot of moderate dems and reps in majority of the states, who could vote either way, depending upon the candidate(s).
Have you considered the link to education? Poverty results in an ill-educated electorate incapable of seeing through demagogery and knowing where their best interests lie.
Hence that inability to see the sense in gun control or the undue importance given to marginal issues like abortion, lapel-pins, school prayer etc.
Yes. Hate-mongering works across socio-economic and geographic boundaries. It blinds people to the real and more immediate problems.
But while a prosperous shop-keeper loses nothing sitting in his A/C store in Chandni Chowk and blustering about chasing "them" all out of the country, that daily-wager pays a real price for losing sight of his real issues. Instead of fighting for a better public transport system, for example, which would let him travel farther, to a better-paying job, Mr. Easily-Distracted is likely to end up wasting his energy (and losing the day's wages) burning down a blue-line bus protesting (a) on behalf of some pilgrims interested in gawking at a penis-shaped icicle in faraway Amarnath or (b) against some cartoon published in faraway Denmark.

If so , I can easily guess the quality of your work.
If you really read any of the news where that came from , all of them mentioned the cooking habits and diets of the southerners.