Some Tennessee guy on youtube is trolling my page telling me my state is full of rednecks and inbreds how should I respond?

I would ask him, "And your point IS -?" Then report him, pronto. If he comes back again, block him. And remember, if someone calls you anything similar, it takes one to know one.

P.S. Don't curse him out, for any reason whatsoever. All it's going to do is give you a bad reputation with SW monitors and him fuel his "hate" fire.