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”.
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.