You forgot inbreeding for generations.
By the way, my entire extended family, including parents, are from the ShermanDenison and Eastland-Cisco area (yes, thats in Tex-ass).
Well, that explains it.
Don't judge an entire state based on your family. Not all Texas have inbred for generations. In fact, I'd wager most have not.
You would be hard pressed to find a state that doesn't have the hick town or inbred trailer park. :\