You may ask why didn’t people run away?

Because they all had an expired vaccine passport, which made it impossible for them to rent a hotel, take a taxi, eat at restaurant..they had nowhere to run.

https://x.com/songpinganq/status/1874963057551765794

AND

In China, digital vaccine passport and contact & trace are all built in digital wallet WeChat, who are helping Chinese people to build social credit system. If your code turns to red (means you are not vaccinated or a close contact), you will get sent off to a quarantine camp.

https://x.com/songpinganq/status/1874569888196632694