In Idiocracy, people take a crisis seriously, the state is actively looking for experts to solve the crisis, and defers to them quickly, and when evidence appears people change their minds. Finally they elect the person with the actual best plan for the future.

Idiocracy fundamentally has a wrong view of American stupidity. Idiocracy treats Americans as well-meaning but too complacent to care about the long-term consequences. It declares that society's problems are from a (genetic) lack of useful effort.

But, as the past 10 years have made increasingly hard to deny, American "stupid people" are actively hostile to reckoning with the long-term consequences of their actions. Ignorance was only ever an excuse. It's entitlement rather than complacency, and society's problems come from ('genetically smart') people deliberately bending useful effort towards societal harm for personal gain.

But while it may not have been quite as grating, Idiocracy was already wrong when it came out. Civil rights were suppressed with "ignorant" excuses that were a fig leaf on the desire to do harm. The eugenics the movie takes as a premise - that "smart people" breeding leads to a smart world and inversely for "stupid people" - is itself a form of "ignorance" about genetics that was actively being used as a fig leaf for genocide in the US in the century before.

But no, I'm sure you "just don't get" how Idiocracy is endorsing a genocidal view eugenics. It's easier to "believe" brawndo makes the plants grow.