Question: Whats the mesage behind American Idiot? 

Answer: They are voicing their opinion on the current state of the US media. More particularly how they deem it to be a propoganda machine for the Bush agenda ("red neck agenda") that has done a very good job of keeping people scared and in a state of hysteria regarding the War on Terror. They are asking people to wake up and see the light and stop this media/government control of thought and reason - hence "I don't want to be no American Idiot"
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