redneck? Or is that two words?
Archie Bunker? Now that's definitely two.
Do any of these appeal to you?
blockhead, bonehead, dolt, numbskull, idiot, moron, ***, buffoon, ignoramus, jerk, dingbat, dope, *******, psychopath, maniac, crackpot, lunatic, fanatic, crank, flake, dimwit, ...
Consult a thesaurus, I'd say.
CJ