It's easy to do when you can just forcibly move people and don't have to listen to what the locals think before you start laying track
However, that doesn’t explain how they can build 17,000 miles of track and we can’t build 800.
Source: lived in China
Dodger Stadium was built by razing a poor but cultural neighborhood and it is now considered to have been unethically done. But it was fast...
Which sounds like a very inefficient court system to me.
China doesn't have to do that.