I disagree, something Jeff Foxworthy did for the entire world, was let everyone know that their are rednecks EVERYWHERE you go.
I watched a program the other night where he was talked about.
He was in a comedy club in Wisconsin somewhere, and someone had mentioned to him that there were no rednecks in Wisconsin.
He took the time to say
"Well, I'm standing here in a Bar that's attached to a bowling alley that has valet parking. If that's not redneck, we may just have to figure it out." Then came his "you might be a redneck if..." stuff and he's now the richest comedian in the world... just because he found a way to relate everyone to "rednecks" in some way or another. He actually turned what has always been a slandering word into one that most people can relate someone they know to.
In many ways though, I'd consider myself somewhat of a redneck... none of which are listed in that little offensive description above.