The GPS in my car has an accuracy of 6ft and updates like every 30ms. It's crazy accurate.
A police state doesn't reduce crime, just look at China. That being said I'm like you with that form of privacy. Any and all info that can be collected will be collected the instant our devices hit the net. It's no different than phones being tapped back in the day, only in this case info can be sent out without you knowing. Windows, Google, social media, Android, iOS, game launchers, anything and everything makes you check a box saying it's ok to send statistical "anonymous data".Y'all americans worrying about privacy, you still have it pretty good. The UK is already too far gone. It's practically an authoritarian police state at this point. CCTV everywhere. Our Prime Minister used to be Home Secretary and literally did everything in her power to remove human rights, privacy laws etc. Our government have a huge hardon for everything that lets them know about their citizens private lives.
However I do have an unpopular opinion: ****ing go for it, I don't care. If they want to watch me have a **** on the toilet or wank to weird porn through my webcam, go for it. If it means noone can get away with crimes like theft because we have police drones patrolling everywhere then 10/10 go for it because what I am fed up with more than anything is all the ****ty crime we have in the country these days. Can't leave your posessions anywhere without them being stolen. Can't leave your door unlocked. Can't leave your laptop on your car seat. it ****s me off, you have to spend your life remembering that everywhere you go their is some chav **** waiting to ruin your day. So yeah if mass surveillance means zero crime then cool. It's not like they literally sit in some secret government building watching your every move. Math tells you that much. 70m citizens and a few hundred people sat in GCHQ ? it's literally impossible.