What is your definition of predominant
and which states are you talking about. The south is not much of a discription. You try and cast southern states as poor, but in reality, California is poor. There is plenty of income for a lot of people, but the politicians do their best to confiscate it and piss it away.

Sort of contradictory, since the media wants to cast republicans as rich selfish people. If you travel through small towns in Nevada, New Mexico, Montana, Oklahoma, Texas, you will instantly think they are poor, because its not LA or Seattle. Yet, Seattle and Washington in particular has a lot of poor people and it consistently votes democrat. There are a lot of issues, that determine party affliation, not just money.