They chose the wrong side about opposing gay rights, too. This has already seriously damaged them as a social movement. I don't see any new rabbits they can pull out of their hat, they've sort of played all the moral panic cards, so I expect they will simply double down on abortion. We are sort of seeing that, especially with the 2019 film Upnlanned, a masterpiece of propaganda that would make any Soviet commisar proud.
Evangelical fundamentalists were never that respectable as a moral authority before the double hitter of Billy Graham and Roe vs. Wade, they actually hit it off big-time with abortion, and allying with Catholics. It was a masterful strategy, actually, because to many people in the public at large, their basic worldview was repugnant.
I'm sure you've seen the early 1960's film, Inherit the Wind? Fundamentalist religion simply wasn't all that respectable in the 20th century, people understood implicitly it could be crass and mean-spirited, and went against the sense of social trust most Americans believed in. It took people like Billy Graham with his charisma and sincerity, and moral issues like abortion, to create an aura of serious moral deliberation and deep spirituality. They actually were somewhat succesful in turning things around, for a while, until they chose poorly again.