There is also “stupidism.”
Of course, Mother Nature is the original “stupidist.”
“Stupidity cannot be cured with money, or through education, or by legislation. Stupidity is not a sin, the victim can’t help being stupid. But stupidity is the only universal capital crime: the sentence is death, there is no appeal, and execution is carried out automatically and without pity.”
—Robert A. Heinlein, *Time Enough For Love*