Communist Creations
Let's take a look at how China affords all these great cities, and then look at what the people live in.
China has an abundance of cheap labor, like every citizen in China with the exception of the chosen few. They can build and maintain anything that they could possibly want with all their cheap labor.
But let's look at how the average Chinese lives, in impoverished housing stacked on top of each other, some with several families living in one apartment. Most can't afford a vehicle and require mass transit to get around, which works out just fine with all the cheap labor they have to build all this mass transit.
You just can't compete with communist, no how, no way....