Rational people should recognize there's nobody left to convince. They know what Donald Trump is. They know what Donald Trump has done and what he'll do in the future. And they want him as their leader. That's what they are.
The only thing left to do now is to Get Out The Vote. Do everything you can to make sure the number of rational people who vote is higher than the number of Trumpublicans who vote.
Do it to protect what's left of our nation's honor in the eyes of the rest of the world.
Do it to ensure our Supreme Court is not stacked with primitives who would destroy civil rights and oppress disempowered people for the next few decades. Do it to oppose bigotry, misogyny, and racism.
We don't have to mock or vilify Donald Trump anymore. Everybody knows. Just get all the rational people to vote. Put all your time and energy into that critical effort. Do it.