My girlfriend has a for me crazy stance on privacy and I don't know how to discuss it because it is so ridiculous

Hello there.

I had a discussion with my girlfriend about privacy. Normally she is a loving and moderate human but she shocked me pretty hard in this discussion. We are talking about Switzerland, so it is not a NSA/US centered discussion.

She has the opinion that it is not a problem if the government watches everyone secretly and tapped phone calls, activates your webcam etc. She says that the government has no interest in what you privately, with whom you exchange nudes and if you like to be on top or on the bottom while sex. She said that it is a good trade off when the government is able to access every personal information for having a secure society and that it is a nice thought that everyone has his absolute privacy but we live in a society and without surveillance in any kind the state wouldnt be able to get any criminal. Another argument also was the classical if you have nothing to hide you have nothing to fear because the government cant do you anything with information when you are completely innocent.

I am so shocked tbh. Maybe I am overreacting a bit right now but i dont know. Can you maybe help me approach this problem? Maybe some solid arguments in favour of privacy?