Hate to admit it, but you’re spot on. I’ll add, in a D&D sense, they’re lawful good. They can’t imagine breaking laws, nor bending them, are shocked that others do so. Hard to explain, but it’s a thing I see IRL.

And yes, values of “good” may differ, but they have a hard-core version of “good” they follow unerringly. They see no nuance in behavior or politics, only black and white, good and evil. They’re like the annoying paladin in the group that fucks everything up over a moral stand.

tl;dr: Religious rednecks are devils, atheist rednecks like me are demons.