We need a Constitutional amendment that guarantees a complete right to anonymity at every level: financial, vehicular, travel, etc. This means the government must not take any steps to identify a person or link databases identifying people until there has been a documented crime where the person is a suspect.
Only if an anonymous person or their property is caught in a criminal act may the respective identity be investigated. This should be sufficient to ensure justice. Moreover, the evidence corresponding to the criminal act must be subject to a post-hoc judicial review for the justifiability of the conducted investigation.
Unfortunately for us, the day we stopped updating the Constitution is the day it all started going downhill.
Maybe. Anonymity is where bad actors play. Better to have better disclosure and de-anonymization in some cases. If some live in fear (e.g. of cartels), go after the cartels harder than they go after you.
That will be wildly unpopular with both parties and most importantly their constituents. I doubt even the libertarian party should they get the president, house and senate could pull it off