Those God awful Yankee WASP people, who these days, inter alia, have a high incidence of Godlessness, and New Age awareness. They also don't like mush mouths too much. If you are going to have a weird accent, it needs to sound like flinty, with soft to non-existant "r's," not mushy. They also notice how Pub Catholics have become. That is yet another signal (when the undesirables more in, you move out) - albeit of waning resonance (certainly in comparison to those overly emotional and ignorant wear your religion on your sleeve Christers out there, with the ones from Texas being particularly intolerable because they are so pushy and arrogant). Many in fact are now more worried about the well being of their gay issue.
Well, of course it's ethnic vote. Yanks and (white) Dixie don't mesh in the same party.