Different nations have different ways of doing things. The policies that they have in China might indeed be the best thing for them. But the only time I care is when American corporations start trying to do that.
I can not disagree about the Uyghur question. The melting pot policy is stupid and must end anyway because it will fail, as we are seeing in Europe. Hopefully it will burn itself out before too much damage is done. I actually feel guilty that these stupid immigration/integration concepts have been exported to other countries.
Calls within the United States for censorship are just flimsy pretexts for consolidation of power, and actually I think are less sincere than Chinese efforts for harmony. Mass shootings and other evils would not be significantly hampered by censorship. People saying that the internet has caused the rise of extremist terrorism are absolutely wrong. Just the last few weeks they kept going on and on about chaos that would happen from the Joker movie. It is nonsense. It is very hard to connect things said on the Internet to any real world deaths here. But I can see how in less stable countries, rumors and misinformation could lead to real problems. Maybe in a place like Indonesia or The Philippines they should censor misinformation, when there is a very real chance of conflict breaking out.