Earlier quoted context omitted.
The difference being that you won't get self-driving cars any time soon (at least a decade away), while countries and cities such as China, Singapore, Dubai and London already have mass surveillance at an unprecedented scale. Personal freedoms are already being infringed upon in these countries, and saying the wrong thing publicly will land you behind bars.
Oh yeah sure they have the mass surveillance, did they "eradicate crime" though? The US can already be defined as a surveillance state in many aspects, and it could be made muche worse for sure, what I doubt is that it'll solve criminality
UK (or London) has about 99% coverage. It means jack shit without enforcement, and let me tell you, there are many streets out there with junkies smoking crack without any issues.
My girlfriend in LA is scared to go to the bus stop. There used to be two drunks around noon, and now they even set up a camp and there are more people. Cops are doing fuck all about it.
CCTVs mean nothing.