The US losing power is not just a little local difficulty. When the top dog dies his place is taken by another, and usually that's after a fight with the other contenders.
The real question is, 'Who will take their place?' It is hard to look beyond Asia to find the most likely candidates, and if they impose their culture on us the way we imposed ours on them, then we're all in for a bit of a culture shock.
Giok