The government has too many different was to track people: Face recognition, cell phones, online activity, credit cards, cars, DNA, fingerprints, Real ID, traffic cameras, social media, home "smart" devices that monitor audio, doorbell camera, etc etc. Combine that with the rapidly advancing technology for processing and finding patterns in huge data sets and privacy from the government no longer exists. It might have been possible to stop this 20 years ago, but that ship has sailed and gone over the horizon, but from where we are now, I see no practical way to roll this back.
We have created the machinery of tyranny, all it takes is for someone to grab the controls and freedom as we know it will vanish.