People are also trading
It's possible that when China's military is 10x stronger than US, it is still cheaper.
Do you really think US's military expenditures went to building weapons and armies? bruh
Interesting Question. Due to the long timeframe deep background effects will drown out short term changes in political leadership and policies. My expectation is that china will be more able and hungry to position itself strategically. Speed up of societal narrative conflict by social media is more directly adressed in China while the US and Europe follow with lots of internal conflict but without better solutions. This might change if western societies stumble upon a better solution and are capable to implement it (doubt here). Caveat is age of population, but we will see.