Nothing remotely surprising about our status falling. No "empire" lasts forever. The people who think that the current situations are "the end of history" and how geopolitics will be from now on and that America has the "right" to own and control the world forever are just fooling themselves.
A thousand years from now, the current configurations of nations and national influences will be something read about in the ancient history ebooks, just like the setups of a thousand (or two thousand, or five thousand) are today. If our time on the top of the heap lasts a just a few decades or a couple centuries it is still just a flash in the pan where history is concerned.
Personally, I'd be fine with seeing some
humility brought to the US. There are people living in countries all over the world who are perfectly happy with their lives even though their government isn't the 900-pound gorilla telling the rest of the world what to do. I'd like to think that Americans as a whole would be better people if we didn't have the swaggering arrogance that comes with brute force power.