I can't find it now but a while ago I read a very interesting article about a guy who worked for the Chinese censorship service, tried to blow the whistle on them violating their own laws and eventually fled the country.
I also read about the wallbleed hack that exposed the sort of data China gathers from internet users as well as how their DNS interception system works to stop users from accessing forbidden domain names.
I think there are definitely many in the UK who WANT China's level of censorship. But even as the situation in the UK is becoming dire, the scale of internet policing, scope of topics that are censored by the government, and the severity of punishment dealt out are still well behind that of China.
(I remember the guy who fled China being at risk of a 15+ year sentence, for example. Worst I have seen in UK is 4 years... Which is still insane enough to start a riot, but not equal to China).