Sadly, I know groups like that in my own state, and they are voting for it. I'd love to believe that's the case and the democrats aren't extremist nutjobs, but each one I know has told me they don't care if democrats were eating babies behind closed doors, even if they did it out in the open they would vote for them.
I'm more inclined to believe that if they know of the vote rigging they are probably a part of it. That's how they hide it so well, when you have so many thousands of Democrats in a small confined space telling you "Nah, there is no vote rigging" in a massive gas light, Republicans and Independents are more likely to go with Occam's razor and just believe the rest of the voters fell for a "moderate Democrat."
Normallacy bias is probably the most dangerous one of any fallacy/concept.