In the US, basically any public place (nude beaches included) is open for people to film. I believe there are some exceptions like public restrooms, where there

In the US, basically any public place (nude beaches included) is open for people to film. I believe there are some exceptions like public restrooms, where there exists a "reasonable expectation of privacy." But yes, people are also free to complain to the person and make them feel uncomfortable for the scumbag behavior.