The United Kingdom has more CCTV activity than any other European country, per capita. No-one bats an eyelid. They have also been using facial recognition to find people in the crowd with a really poor rate of success. No one seems to batter an eye lid, China does the same and everyone is going crazy.
The big difference is that you can say President USA is this and that and nothing will happen to you. But speak badly of the Chinese government and you would end up in a shithole for life. Or worst. Or say something bad about the N Korean leader for example. This is totally different.