Ask them, when you say "no evidence", do you mean that you have personally reviewed all of the evidence, and decided that none of it was credible?
or do you mean that you have literally never seen any of the evidence, and therefore you are absolutely ignorant about all of the evidence?
Because I’m pretty sure the video of an election worker pulling a box full of ballots out from under a table cloth, has never been “debunked”.
Most of them honestly don't give a fuck. They don't want to hear it about or see the evidence. And if you did somehow manage to convince them, they'd say it was justified. At least that's been my experience. Wouldn't you cheat at an election to stop "literal" Hitler?
To be fair, some of my friends that lean liberal (lean, not flaming) say they don't care because every election that we ever had was fraudulent. "Presidents are selected not elected" type of thing. They believe the richest select them. But, my circle is different than most, I guess.