And chinese don't have full freedom of movement. China uses a system called called hukou which binds a persons rights and benefits to their birthplace. This has created a population of 350 million rural migrants who live in cities but still have a rural hukou and are treated like second class citizens in their own country.
https://borgenproject.org/chinas-hukou-system-restricts-mobi...
China is a communists based country. Everything is organized and for everything there is a plan. Unlike America where it's free for all. We probably would die from unhappiness in China. But it works for them and they are pretty successful in it.