Who gets to decide which crimes are serious enough to warrant the types of actions being advocated for? Who is going to implement and regulate such controls? Our governments have shown their willingness to violate those controls any time they see fit and are not held to account. Do you honestly believe that you could never end up on the bad side of that deal?
We could try investing in positive infrastructure that improves peoples life's in stead of creating the panopticon torment nexus. Things like third spaces where people can spend time is save spaces where they form communities and public transit so that people can get to those places. Incentivize positive behaviors instead of closing off public spaces and pricing more and more people out of being able to do anything with the minuscule amount of free time they have besides going on the internet.
You can. You just have to ignore all the privileged people being annoyed that they have to see you. They love posting on Nextdoor about how much they hate homeless people.
There's still a whole DB matching IDs to keys waiting to be leaked. The US government can't even keep it's own personnel records safe and you think this won't get stolen and used to target people?
Every government has been working on ways to identify and target individuals online since as long as the internet has existed. Governments are incentivized to continuously increase control. Why would you assume this is not yet another escalation towards their goal of being able to track and silence anyone who pushes back?