Regarding China: it takes money, equipment and resources to move millions of soldiers across the Pacific to the U.S.A.
Regarding the U.S.A.: it takes money, equipment and resources to move millions of soldiers across the Pacific to China.
Wars are cheaper to run with proxies. China really doesn't have many proxies, while the U.S.A. does in the Pacific region. China would lose, and they know that.
No direct war with China (for now).
The logistics of moving the men to India, Vietnam, Korea, Taiwan or Japan...is not that much....
What do "we" do? Let them roll in?
Regarding the U.S.A.: it takes money, equipment and resources to move millions of soldiers across the Pacific to China.
Didn't really stop us when we did that to Japan... If it becomes an "existential" war... we can print money like there's no tomorrow.
and that's how empires end... just like everyone before it. Not with a bang, but a whimper.