And the one that’s going to end them utterly if they don’t play the cards correctly. That long view will get them dead, if it’s not tempered by that alleged 6000-year legacy of Chinese wisdom.
If they’re smart, then they’ll realize they can’t win a war with the US but at the price of themselves. They could succeed in destroying America, but America will take them down with her. If they’re wise at all, any ventures outside their own borders will be weighed against this specter.
Of course America does not reside in Asia…but a lot of other nations do. Consider how Russia, India and Japan might take to China running rampant across the continent. Even if the US couldn’t stop them alone, and we can, it wouldn’t just be us.
China wouldn't care. If they could wreck our long range naval projection in the Pacific, they'd be satisfied with that I think. WE might think they know they couldn't survive a war against us, and that it'd be stupid, but the Chinese culture is different than the Western/American one. In ways that are alien. What makes sense to us, doesn't to them. Their outlook isn't ours. They simply might not care. A form of population control if it comes to that?
Also any war depends if nukes are involved. If none are used, China will survive much better than without them. As would the US of course, but our image as a super power would be shattered.
Out of the nations you listed, Russia is the only one that could put up a good fight to China. Japan hasn't enough of a military to worry about and if they did try something, a large number of missiles might come flying their way as payback for the Japanese occupation in the 1930's and early '40's.
India? They have more to worry about from Pakistan and Bangladesh, unless China crosses over the border if India.
Russia would only get involved if their territory was invaded. Otherwise I don't see them intervining militarily. Now I could see them using the confusion of the situation to send 'aid' to several nations that were former Soviet satellites to help 'secure and defend' those lands. A take over, so to speak.