Man, the song was taken out contest by President Reagan. It is in anti-american song. The chorus is meant to be sarcastic.
If you read the lyrics, it basically says: My country does all this real bad bad bad things too me. not my fault, don't blame. I was bored in middle America. I was a stupid kid, not my fault. I went to Vietnam. It closed the factory. I'm going nowhere in life. I was bornin the U.S.A. Yeah!
Listen to the version on TRACKS, it's more evident there.
Well unfrotunanlty my young and stupid youth only use to really listen to the 4 big words that were the main title of the song. I never did listen to the hidden underline message. But knowing what a jacka$$ Springsteen really is now, I wouldn't doubt it at all.