"You don't control the airspace." Why not use it?
A. It sounds whiney.
B. It's almost certain not to alter the behavior of that person.
C. There's a good chance that it will prompt an "Oh, yeah? Let's call the police and see." response which...
That’s like the law where you can be prosecuted if found drunk in a UK pub.
Why does it have to be about the legality?
Just fly responsibly and respectfully. Karen or Ken will be always be a Karen and Ken and don’t care who’s the sky belongs...