Living in a parsonage for the first 18 years of my life, and then tangentially for 50 years, I’ve heard and learned a lot. The members — especially the men — condemning sex-related sinfulness usually “fell” far and hard later on. I don’t know if it was God’s way of teaching humility, or Satan’s way of making that person ineffective as a witness. Whatever... they learned difficult lessons, ruined many lives, and had to eat a lot of crow.
So Christians “cringing”, wringing their hands, and loudly condemning now shouldn’t be surprised when they get their come-uppance.
I know a number of people who are conservative but aren't religious. What offends them about stuff like this isn't the sex angle. It's the trust angle. Singles fornicating with singles? Fine. Married man consorting with singles? One strike. Married man having a fling with married women? Two strikes. It's doubly bad when the guy operates a casino and a diploma mill - both businesses that prey on human frailty. Trump's entire record is of sticking it to people for his personal gratification. Now he comes up with position papers claiming a Road to Damascus conversion to conservatism, without acknowledging his previous liberal positions - positions that were different depending on what year you asked, but fairly consistent in their liberalism. You have to be very trusting to pick Trump as your first choice for GOP nominee.