W.P., it really isn't that they are all LIARS, but they are SO MISLED.
I really feel for them. I was just as they are once, because I was taught the same sort of tripe they believe, while I was in public school in Alabama. Honestly, at that time (the late 60s-early 70s) history teachers actually taught some of this mythology as history. So these guys may just be misguided.
I am reading Caro's book on LBJ's senate years. He has a very long chapter on Richard Russell - a gentleman, a genius, and almost a super human Robert E. Lee type. But then you read what came out of his mouth about race, and what he failed to reveal known to his own personal experience. It is a bit of a cold shower. Thank heavens those days of mental gymnastics are over for most of us.