Property

In western countries you can buy a piece of land with a house on it and it will be your property until you decide you want to sell it. It is not possible that someone takes possession of your home without paying for it. Even the government has to pay for your possession if they want the ownership of it.

In China it is not possible as a private person to buy a house or land for eternity. Ownership is limited. Most of the time you can only lease your home or land, this is called ground lease.
A national land register is not available in China. This makes it even more difficult to find out who has the ownership of a piece of land.
You don’t own your house and this makes it easier for the government to disown people. Compensations from the government are often very little, due to the lack of independent jurisdiction civilians have no way to go with their complaints.