Europe is too fractured to take down the US economically. Russia isn't populous enough. The Islamic world isn't advanced enough. Africa isn't even in the game. Latin America, like Europe is too divided, in addition to under-developed. That leaves Asia, under the leadership of China. Asia is capable of doing this and eventually will go for it, probably in a matter of several decades.

The US knows this and is preparing for a military confrontation to thwart it. In order to solidify military hegemony, the US plan is to militarize space. The Chinese already sent a message that they will not permit this. The plot thickens.