> People either have privacy in public or they do not

Thankfully, the law isn't as overly simplistic and black and white as that. It'd be very stupid if it were. We have the ability maintain a general principal like "there's no expectation to privacy in public" and still prohibit certain things that are deemed harmful, like taking upskirt photos of people while they are in public spaces.

Great! Can you send me the link to your personal bodycam so I can watch you at all times while you're out of the house?

This is actually not how the law works. Nice try though!

I know whole States of them.

>I don't know anyone who seriously claims that there's an expectation of privacy on public roads

Hello, I'm here.

Practically, we do have privacy in public pre-AI. We weren't entitled to complete anonymity, but the ability to track every single person at all times was impossible.

Now that AI and sensors are making it possible, people are saying "No, I don't want that to be the norm".