History, recent and otherwise, illustrates repeatedly that the perspectives of the American political elite have important spillover effects on the rest of the world. From the perspective of someone standing outside the United States (and not incidentally the Christian faith) and who regards the US and Americans in a generally favourable light, what is happening within the borders of your country is cause for concern - To quote Sam Harris:
"Those with the power to elect our presidents and congressmen - and many who themselves get elected—believe that dinosaurs lived two by two upon Noah's ark, that light from distant galaxies was created en route to the earth, and that the first members of our species were fashioned out of dirt and divine breath, in a garden with a talking snake, by the hand of an invisible God.
Among developed nations, America stands alone in these convictions. Our country now appears, as at no other time in her history, like a lumbering, bellicose, dimwitted giant. Anyone who cares about the fate of civilization would do well to recognize that the combination of great power and great stupidity is simply terrifying, even to one's friends."
"Imagine the consequences if any significant component of the U.S. government actually believed that the world was about to end and that its ending would be glorious. The fact that nearly half of the American population apparently believes this, purely on the basis of religious dogma, should be considered a moral and intellectual emergency." (Letter to a Christian Nation).
Indeed it is. The rest of the world is anticipating November with considerable interest. Lots can happen between then and now. If somehow your Mr. Romney pulls a rabbit out of a hat we may be stockpiling dried and canned goods in our larders.