In Chinese history when they want to build a city they look at how many rivers there are for paddies and build the walls first to secure the land as it's mostly flat and easier to conquer.

Central planning has been the cornerstone of Chinese history and they view thir people as units rather than human beings. They have a city that's for 1000 people and extra babies are born and they kill the children to prevent overpopulation. Rice production is an exacting process and too many mouths to feed leads to starvation and rebellion. Just as China is flat and easily conquered so to it is easier to fall into rebellion.

They've been invaded and mongrelized so many times over the years they don't view the average person as high value because historically speaking the Chinese person has changed many times so the individual doesn't have much historical stock in the land.

They are the opposite of Europeans because in a historical sense borders are fought over in Europe and the individual countries and people groups didn't tend to go away while in China the greater borders have never changed but internally they have been at war with themselves enough times to distrust themselves whilst Europeans kept themselves more distinct.

Basically, China is nothing to worry about because of the history of central planning and the eventual breakdown of rigid systems eventually it's going to fight with itself so the rest of the world can get on with its own business.