From what I understand these systems are legal because there is no expectation of privacy in public. Therefore any time you go in public you cannot expect NOT to be tracked, photographed, and entered into a database (which may now outlive us).
I think the argument comes from the 1st amendment.
Weaponizing the Bill of Rights (BoR) for the government against the people does not seem to align with my understanding of why the Bill of Rights was cemented into our constitution in the first place.
I wonder what Adams or Madison would make of it. I wonder if Benjamin Franklin would be appalled.
I wonder if they'd consider every license plate reading a violation of the 4th amendment.
I suspect they'd make a distinction between private individuals engaging in first amendment protected activity like public photography and corporations or the state doing the same in order to violate people's 4th amendment rights. We certainly don't have to allow for both cases.
Ships - ships big enough to do material damage would be very small in # - ships big enough to do material damage would have a (somewhat?) professional crew - whatever damage they could do would always be limited to tiny areas - only where water & land meet, only where substantial public or private investment had been made in docks/etc - operators have strong financial incentive to avoid damaging ship or 3rd party property (public or private)
Cars - in some countries the ratio of cars to people is approaching 1 - a vanishingly small portion of vehicles have professional drivers - car operators expect to be able to operate at velocities fatal to others on nearly 100% of land in cities, excepting only land that already has a building on it, and sometimes not even that. - car operators rarely held liable for damage to public property, injury, or death and there's strong political pressure to socialize damage and avoid realistic risk premiums
I don't love flock but IMO the only realistic way to get rid of license plates would be mandatory speed governors that keep vehicles from going more than like 15mph. I would be fine with that, but I suspect most would not. If we expect to operate cars at velocities fatal to people outside our vehicles, then there will always be pressure to have a way of identifying bad actors who put others at risk.