> take upskirt shots of women walking over. That’s illegal at a federal level in the US

Only since 2004, and that's a specific exception that was made and only applies when there is a clear expectation of privacy, i.e. wearing clothes to cover your privates is a clear indication you expect that to be private. That doesn't stop anyone from taking pictures of you you don't like though and it only makes the area under your clothes a private space, it doesn't make the public space your in a private place.