I don't really get the love for Idiocracy. You know the amusement ride with the really obviously bad history? The whole movie is basically that. They know their audience doesn't know much history so they need to make mistakes dumb enough so everyone will get it.
It's a cynical movie that knows its audience isn't so smart, so they need to make sure the idiots watching know who the real idiots are. That way the audience can enjoy watching a lot of really dumb stuff while feeling above it instead of targeted.