It’s not like a license plate. The registration number on your drone is like a license plate. Remote ID is like an ankle bracelet tracker that anyone and everyone can track. This is for both you and the drone.
The Supreme Court has already ruled that location data is property subject to 4th amendment protection against illegal search and seizure and requires a court order to obtain. The FAA is telling us we need to give that information not just to law enforcement without a warrant but all to any joe able to pick up the signal and with no knowledge it is being taken.
It’s akin to requiring your car to broadcast its location, speed, and heading to anyone with a phone app which no one in this country would accept.