There is no other solution here if you want to both participate in the modern economy and preserve some semblance of privacy, and even then some idiot somewhere will leak your medical records or family photos.

1. A public profile that is your real self.

2. Throwaway identities.

3. Air gaps

4. EFF[1], IJ, or EPIC membership

[1]EFF is a serious organization, but I would happily pay their $1k or even $5k membership tiers if they ran a larger, more concentrated pipeline of affirmative lawsuits like FIRE and ACLU do. Hire liberty-minded sharks to find bad laws, find plaintiffs, file challenges across jurisdictions, and keep a large docket moving continuously.

For what it's worth IJ and EPIC do this well, but EFF has a bigger profile and the technical bench to make this approach highly effective.