> Is Chinese public sentiment in favor of this ever increasing surveillance?

How would you know? They have an internet that's openly censors and filled with pro-government propaganda. Many of those articles are basically cheer-leading for the technological infra structure for further control, such as paying for everything on your phone with WeChat and the planned social credit system. These articles play up the convenience to the people while leaving unsaid the surveillance and control implications. I'd also guess they're unlikely to allow Western-run surveys to be taken and even if you tried to conduct one, the people would tell you what they think the government wants you to hear.