There are hardly any farmers left in my state.Red necks are farmers and mechanics. They aren't going to be roving gangs heading into the Amish village. If you shut off the power you can't pump gas, so you stay where you are at
As for mechanics, they're like anyone else. What makes them the career choice of virtue?
When I say rednecks, I'm talking about those who identify with the country as opposed to the city. There are all kinds of criminals and former criminals outside the cities.