Whats the flaw of the "Nothing to Hide" argument?

To be clear, I don't subscribe to the idea of "Nothing to Hide." It's a bullshit argument. The reason why I'm asking this is because I want to be able to explain why it's bullshit. I don't like the fact that many people, including ones in my family, are willing giving up their right to privacy simply because they've become accustomed to convenience that modern technology has afforded them. I, myself, have been guilty of these but I'm actively taking steps take back my privacy and potentially help other as well.

Bonus question: Many people will retort with things "Do you want criminals walking our streets?" or bring up an anecdote about how Flock, Ring or any other surveillance companies' cameras help solve a crime or found a missing person. Flock themselves have a blog post series called #SolvedStories where they list so-called "success stories" about their cameras solving a case. Of course, I don't want criminals walking our streets and, sure, those stories might pull my heartstrings but what's the bigger picture?