I understand the point, but you're taking their statement "I have nothing to hide" way too literally, and these sorts of arguments based on literal interpretations rarely convince anyone. Has anyone actually ever been convinced to take privacy more seriously by this "insight"?

It's not so much a method to convince people to take privacy more seriously, but demonstrating that people who say "I have nothing to hide" haven't really thought about it and how it's such a ridiculous statement.

My aim would be to get people to understand that everyone has stuff that should be kept secret and that it varies according to their circumstances.