What sort of a response do you think a movie whose premise is “dumb people have overbred and made the world worse” is intended to provoke?
I'll have to watch it again, all I remember it as was a goofy movie. It didn't make me think "we have to kill all the stupid people".
Actually I'm inclined to think it's more like My Fair Lady and that much of what we call intelligence is down to opportunity and motivation.
Is Dennis the Menace a treatise on corporeal punishment?
If we want to treat Idiocracy as a policy paper, why not take away as a lesson to think beyond merely themselves when the well-educated decide whether to raise children?
Good luck in your quest of persuasion-by-bludgeon