The real idiot of the movie, the BIGGEST idiot, was Luke Wilson's character. Blase' about everything, went through his life doing nothing, making no difference, taking no stand, just being...and it was HIS inaction to what was really going on in the world around him that allowed the future of Idiocracy to become real as society was allowed to become more and more stupid and entertainment driven until it was all summed up by a ruined planet and people obsessed with a guy getting his balls smashed on national TV.
In honesty, we're not that far away from it now and you sure as hell don't need a movie or a time machine to see it coming. We could all use a little less Luke Wilson.