Liberals have been fanning the alleged racism of these terms, or more accurately, behind the political strategies involved. Interestingly enough, I found this linked article from the University of Michigan, which expresses another viewpoint worth considering—namely that racism wasn't so much the driving factor in the increasing conservatism of the South.
I think this needs some attention, since all conservatives are racists according to liberals. I'm honestly surprised that something like this—an alternative narrative—could come out of the U of M since most universities lean left and academic freedom to a leftist means squelching all other points of view.
Yes, I know. I'm painting with a broad brush—spray can is more like it. But today, I've got a "tude." You'll have to excuse me. The "tude" will pass when political season is over. I hope.