It is more troublesome to become a citizen of China. It would be nice to have permanent residency. Besides, although Chinese people are not dominant in Malaysia, their passports are dozens of times higher than those in China.

People can basically go wherever they want, can we?

You can apply for a permanent residence visa. For details, please go to official website, Public Security Bureau. There are many channels and many terms. Now it seems that the most convenient thing is to get married.