Just say these words: “If you vote for Trump, you’re voting for a rapist.”
And Republicans will retort "If you vote for Biden, you're voting for a baby murderer."
It won't change a single vote.
If Trump is a rapist, he should be criminally prosecuted for rape. He's already lost multiple civil lawsuits on the subject. This should be practically trivial to accomplish.
But Democrats have been pussyfooting around an actual criminal prosecution for the last four years. They seem entirely disinclined to put their money where their mouths are and LOCK HIM UP. Instead, its just folks shouting "You're a criminal!" from one pulpit while their peers on the GOP side retort "No, you!"