The quest for American supremacy qualifies as a bubble. The dominant position the United States occupies in the world is the element of reality that is being distorted. The proposition that the United States will be better off if it uses its position to impose its values and interests everywhere is the misconception. It is exactly by not abusing its power that America attained its current position.
AT - I'm thinking that the resistence of gay marriage is just as compatible with this economic bubble analogy also.