I guess that you have not paid much attention to many of my posts. I was born and raised in Dallas, both of my parents were native Texans. Both sides of my family came to Texas after the Civil War from Alabama. My great grandfather was an officer in the Confederate army. I am a daughter of the SOUTH. I have never even lived outside of it. My family had more prejudice than one could shake a stick at. Blacks, Hispanics, Catholics, Native Americans and this one is odd, very fair skin blondes, were all folks that they 'looked down on'.
I was in public schools during integration and during the 'white flight' (My Aunt and Uncle, fled to the suburbs, so their kids wouldn't have to go to school with those damn N word). I remember the signs for black and white drinking fountains, the "I retain the right to refuse service to anyone' signs. I believe that my grandfather may have been in the clan when he was young--not sure about that. My great grandfather was a plantation owner and had owned slaves (he had already freed them, because he decided that it was wrong to enslave fellow Christians).
I had the deep south upbringing, in spite of that, I NEVER heard anyone in my family advocate overthrowing the federal government. They felt that those that did were crazies, or loony. What is funny is that with that upbringing, I married a black Catholic, I looked at things with the mind of a skeptic and I applied critical thinking to what I heard and I found their attitudes to be dated and unreasonable. I was around 6 when I decided that the American Indians were not the bad guys.
Most Texans are not flaming nutters like you seem to think they are.