I think what makes this movie funny is that it is as exaggerated version of the world around us. I really do think we are headed in that direction, but at least we can laugh about it (even if it is stupid laughter).You know the funniest part about this movie is that it opened in limited release, because when it screened for test audiences, then didn't get it. So that in and of itself proves his point.
We might be well on our way to this future.