In rural Oxfordshire, England, I once went to pick up a used car which I was buying for £30. To get it, I had to go to a village I’d never visited before, right out in the middle of nowhere. As I approached the village, I saw that it was dominated by a huge manor house; however, when I drove into the village I found that the manor house was falling over, and the houses around it were like something out of Deliverance’s Appalachia. Weird, in-bred looking people eyed me from porches surrounded by dilapidated barns and rusting farm machinery. It was really strange, and rather spooky in a sort of Wicker Man way.
A few years later I worked with some people from this place, and it turned out that many of them were in fact in-bred. Furthermore the “lord of the manor” had inherited the house, and though he was a land millionaire, he lived like a tramp, with wild hair and wilder eyes, riding round on a shagged-out moped with his dog on the fuel-tank and his trousers held up with string.
So yeah, they do exist in England, though I’m sure they wouldn’t identify themselves as rednecks.