Lets face it, we could have a video of trump raping those kids himself and they still would vote for him. Facts are irrelevant to cults, they are immunized against reality
It's because they want to be him. Just like how they all don't want to punish millionaires because they all think they're going to wind up as one someday, they don't want to punish their guys for breaking the law because they want to be able to break the law with impunity someday too.
It's all too easy to imagine the mental gymnastics.
"She was 17/16/whatever, not a real child anyway"
"There is no sign in the video that she is not consenting, this is a private matter"
"The democrats are sick for obsessing over this"
His base will worship him more for it. He's essentially a black hole (orange hole?) at this point, his people have passed the event horizon and can't turn back.