I'm a southerner. Take what I'm about to tell you as close to the grain of the problem as possible, because it is.
Here's the thing. 9 times out of 10, a Southern man is going to meet a lone trans or gay person, have a pleasant experience talking to them and go about their day, they even make friends with the person, spend years talking to them, send gifts, become family members, etc.
But you know what?
Behind closed doors, it's "fuck those removed", "not in my schools", etc. My mom does it, her sister does it, my dad did it. It's hypocrisy at an extreme level while also ignoring it at an extreme level.
"Well I have gay friends... I'm not homowhatzit"
THEY'RE TEACHING WHAT!?
"Double Standard" might as well be the tagline for the entire South. They'll protect their religion and the expectations put on them by their parents and social norms on a general level across the board, while still shaking hands and eating cake with their lgbtq+ buddies.
Just remember any southerner is one thought from God away from stabbing you in the back at all times, because no matter how close you get to them, even as a family member, that book and the expectations behind it means more, was beat into them more, every day since they were born until you met them.