This isn't new, feds have been stockpiling massive amounts of data on a variety of focal points. There's a variety of ways your information passes through public venues that through EULA's you've agreed to both actively, and passively, you've granted access for them to compile and use the data how they see fit. They will use a variety of tools that they've created and analyze data in ways to assist in making decisions on topics they're focused on. You're worried about the government over reaching and violating your constitutional rights, and yet you use google, facebook, instagram, perhaps even tiktok, ect. Have you read those EULA's? Of course not, they're very long, contain legal language that doesn't make sense to the laymen. There is nothing the government doesn't already know about you, and your habits, that social media, and the largest data brokers in the world, haven't already sold to them, and you agreed to it on the EULA that you signed in some form or another. If you want to sue over it, then you have to go through binding arbitration that you also agreed to, and use a arbitor that they're paying for, that is almost certainly going to rule in their favor, not yours.
You'd basically have to live like it's 1950, on a paid for piece of property, that has it's taxes paid for from a trust that's managed by a trusted 3rd party that only communicates with you through snail mail, and you'd have to never leave the property, and be 100% self sustaining on said property, in order to not have a massive digital trail that shows everything you've done, and are doing, and even then, the .gov is going to be very suspicious of you.