stupidism

A stupid utterance, act, or process.

No; we have no such ancient stupidisms.

Sophistry is not the exact name for such jokes: stupidism would do.

A stance of willful ignorance, anti-intellectualism, and/or stupidity; the embracing of stupidity.

He had now become one of the thousands, millions, smarting under plain stupidism passing for Americanism.

How explain this strange phenomenon, stark mass stupidism and widespread witcheries sprawling over the land like a black Leviathan, yet which was studded with so many schools and great colleges and universities?

Discrimination against stupid people.

"Racism discrimination" accusations are often mistakenly made by people who are actually victims of stupidism, ignorantism, rudism, smellism, drunkism, drugism, violentism, or criminalism. People often discriminate against others who are stupid, ignorant, rude, smally, drunk, drug addled, violent, or criminals.

He has already helped refute “racism” by publicly demonstrating that many BLMers are discriminated against because of “stupidism” (widespread bias against stupidity), not racism.