There was a case some years back (maybe 10) of left-wing protestors demanding to not be photographed as they took over a campus building.
I think it was at George Mason University.
They went to court over it, and lost. The judge told them that if they were engaging in “a demonstration,” they gave up their right to privacy as a matter of definition.
Their lawsuit was thrown out of court.
The judge should have told them that if they are in public, they have no right to privacy- 9nce a person steps out of their home into the public arena, they can be photographed I believe- there are certain restrictions about ehat the photographers can do with the photos without a felease from the person, but i think the law states that the photographers have the right to photograph people whether the person wants to be or not.
The following is about public photography- in public spaces, noone has a right to privacy basically
https://legalbeagle.com/8581945-illegal-pictures-people-permission.html