You're not wrong.
But this demographic is weird. I posted a few days ago about Roy Moore's Evangelical supporters.
That shit about how he never asked a girl out without asking her mom's appreciation first? That appeals to this group. That was a win for him and a confirmation of their values, regardless of how tangentially condemning and slimy that felt to everyone else.
That shit about how he's being witch-hunted and persecuted by Alabamian outsiders and GOP establishment? That appeals to this group too. Every one of them feels like their denomination is under attack, modern-day biblical persecution.
The recursively insular nature of this denominational demographic cannot be overstated, and they all want Moore to win because fuck the Democrats for sure - you're absolutely not wrong there - but also because no one else will stand for Evangelical theopolitics. There's not a better option for them, but also Moore is loved in this community.
I'll leave you with their words, an excerpt taken from a friend of a friend's Facebook page. With 1,035 total friends, this post got 122 likes, 12 shares. I won't talk about the comments...
I’m mad as h_ll about the Roy Moore Accusations!
And I’m biased. That's right. I don’t throw my friends under the bus when they get accused of something with highly questionable timing and which no one can prove. You treacherous, stinking Judases - you Republicans, who have abandoned Roy Moore. You are despicable. I pray . . . I pray . . . to God Almighty that you be accused of sexual assault – FALSELY – and that no one, absolutely NO ONE, comes to your aid. You reap what you sow, you false ones. Your loyalty is like the morning dew, disappearing at the first sign of heat. You turn on your own and you eat him, like a mother destroying the fruit of her own womb. Yes, I just compared you to a child murderer.
Same deal, different person, similar friend total, similar like/share ratio:
You want some real guilt? Here you go. You waited until just before one of the most important elections in our nation’s history, an election involving the only man in anyone’s living memory to stand for God Almighty and His word and really, truly mean it, even putting his life on the line! And you, you pathetic simpering weasels, report on the righteous man who intends to stand against the forces of darkness, the forces of infant-killing, of marriage perversion, of Constitution-subversion! You chose to side with the Prince of Darkness over the man standing against the evil of our nation, which is slipping rapidly into Hell! And you expect us to believe you!? No, I can’t, I won’t, I’ll never believe you!
I repeat, this demographic is weird, and their fanatical support of theopolitics is stronger and more perverse than your OP gives them credit.