

There are certain things like voting that should have bare minimum entry requirements. (Proof of ID, lack of felony charges)
IMO, felony charges are another tool of deliberate voter disenfranchisement, since the US justice system is clearly racist and has a shit ton of convictions compared to the EU (most countries, really - the US prison population per capita is one of the highest in the world). Lack of felony charges should probably be a requirement for being elected, but at this point they might start trying to use it for this, too.
Even people who are actually smart buy into fascism, though. It’s not just a question of dumb vs intelligent, but of ethics.