I think you can just assume at this point the US government does not care about the constitution or it's people and will use any means necessary to collect data on those who wish to counter its growing authoritarian nature.

If you go to a protest, only take a burner phone or no phone at all. If you must take your phone, turn it off and Faraday cage it.

The US has become a failed state. Leave if you can. Things will only get worse before it completely implodes.