It's a demonstration of Poe's Law.The core of every nut job conspiracy theory is the belief that lack of evidence is proof of how good the conspirators are at hiding evidence.And as you said, he's not going to answer. I've asked several times now for proof that the Democrats "rigged" or "stole" the last election, but so far it's been crickets. Or more accurately, RV has asserted that the lack of evidence is itself the proof.You will have to address that question to RV.
Unfortunately the majority of the Republican Party and the right wing in America have been gripped by a nut job conspiracy theory. The GOP under Trump has become like the "Weekly World News" tabloid that used to be on grocery store shelves, but instead of being an absurd rag where the creators clearly got the joke, the Republicans (as evidenced by their convention) aren't joking.