Most importantly, you can’t go become a citizen or even permanent resident there. Oh, sure you can go on their embassy website and it has a process. You won’t ever get through that process, though. Only a few super rich or famous westerns are able to get through that process. Not average people like us. If you marry a Chinese citizen you won’t even get it. You will have to get temporary visas every few years even if you have a kid. Your kid will be a Chinese citizen. You will never be or even a permanent resident. You will not be able to open a bank account, fully use WeChat for easy stuff like payments, have trouble getting housing, and so much more. You will perpetually be a legal outsider there.