The corollary to unchosen European collapse was unchosen American ascendancy. We--whom Lincoln once called God's "almost chosen people"--did not save Europe twice in order to emerge from the ashes as the world's co-hegemon. We went in to defend ourselves and save civilization. Our dominance after World War II was not sought. Nor was the even more remarkable dominance after the Soviet collapse. We are the rarest of geopolitical phenomena: the accidental hegemon and, given our history of isolationism and lack of instinctive imperial ambition, the reluctant hegemon--and now, after a near-decade of strenuous post-9/11 exertion, more reluctant than ever.
There is nothing holding America back but those who think they are fixing our problems.