They're idiots because they've systemically allowed themselves to be taken advantage of while refusing to ever hold their leadership, representatives, or votes accountable.
They don't vote for Dems or non Republicans in general not because they're idiots but because they're Evil and want other people to suffer. And more and more think that non-christians and immigrants should be erased. Which Republican law makers will easily agree to parrot or push because they don't give a shit. It's definitely not a ridiculous idea of democratic pseudo elitism especially since the only reason to vote Dem is so those lazy bastards can prevent things from getting worse. We aren't going around acting like we're geniuses compared to Republicans. At most a remark like that would be retaliation.
We don't even need their votes we need the people that aren't voting to vote since they're easier to have an actual conversation with. If they want to be idiots let them, I don't give a shit about them.