Not OP, but if China takes up labor and manufacturing automation with robotics in a big way, there are a LOT of people there that will not have much to do anymore ....

They have invested a huge amount of capital in manufacturing capacity (cars in particular), so much that their total capacity is equal to about half of the entire rest of the world put together. The problem is that they do not have the domestic demand to fully consume this supply. If the rest of the world opts at any point to put up trade barriers and prevent Chinese manufactured goods from being imported, China will wind up with billions of dollars in capital stranded in these investments. That could cause a financial crisis or an economic environment similar to Japan’s lost decade.

There's a real risk of conflict happening with Taiwan. They also have decreasing birthrates, an aging population and government incentives to promote more kids is not working.

They are facing some Keynesian dilemma: because the rest of the world is importing less and they have almost no socialism, their people can't buy the stuff instead. If those corporations fail, the people will be poorer, if they distribute wealth, those corporations will be less competitive.

They have some political dilemma: people only accept the government because of economical growth, but they grew to a point where growth naturally slows down.

They have some financial and monetary stuff going on, but those are mostly non-problems. They have a bubble that is bursting too, that makes the other two problems larger.

All said, I wouldn't say they are in a knife edge.