Why did this movie fail? One reason...
It makes the point that if you don't agree 100% with the filmmakers you are a Bad American. It is the same crap one hears on talk radio and cable news. This is crap and wrong. You can't make funny out of that unless you are MAKING FUN of it.
Very few people will agree with EVERYTHING this film claims you need to be a good American.
Outside of the nut bags screaming that Obama was born in Kenya, hates white people and wants to kill Grandma with Death Panels and the nut bags who claim Bush caused 911 and was a Nazi, simply disagreeing politically should not make you HATE SOMEONE.(It's OK to hate those nut bags!)
This film is about how fun it is to HATE those who disagree with you. That simply cannot be funny except to those aforementioned nut bags.
"Families is where our nation finds hope, where wings take dream." - GWB