Where does this idiocy come from?

Today, here in Western Pennsylvania, I stopped for gas. The vehicle in front of me was a Chevy Suburban. This Suburban had PA plates that read "DIXIE 1T". Along with this plate there were bumper stickers of confederate flags with the words "save this" Also a bumper sticker that read " I am a proud descendant of a confederate soldier". I didn't know what to expect to see when the driver approached the car, but I didn't expect to see a woman get into the driver's seat.

I know this idiocy exists, I just never expected to see it in my backyard. NIMBY (not in my backyard).