Your perceptions of other peoples' views are also off. Even with the current scope of government surveillance, 66% of Americans say that the potential risks outweigh the potential benefits. [1] And laws would not be what limit freedoms. Government and authority is not some abstract holistic entity. It's made up of people, like you and I. Would you feel comfortable with me being able to surveil every moment of your life? The difference between me and the person who would end up doing so is not this great gulf you might imagine.
For instance Snowden revealed that NSA officers would regularly collect and trade sexually explicit media obtained from surveillance. [2] They'd also use their position to spy on their love interests to the point it gained it's own little sardonic moniker 'LOVEINT'. The people that would be looking through those cameras are just people. And the government leadership overseeing these groups would include those prone to go off to an island to screw minors, or more upstanding fellows like Eric Swalwell, cheating on his wife with a Chinese spy while serving on the House Permanent Select Committee on Intelligence that oversees the entire US intelligence apparatus, and would oversee this sort of surveillance.
We're all just people, warts and all.
[1] - https://www.pewresearch.org/short-reads/2019/11/15/key-takea...
[2] - https://time.com/3010649/nsa-sexually-explicit-photographs-s...