Technology

I think the post you replied to was sarcasm.

• Blackmail: This is a case where "I have nothing to hide" actually makes a big difference. Unless you are particularly well off and have significant skeletons, you just aren't important enough to even try to blackmail. And if you ARE important enough to blackmail? Slim jim and a recorder in the pocket on the back of your seat.
• Track you: You also have a phone. And more and more traffic lights and street corners have cameras on them
• Targeted advertising: This is already happening in every facet of life. Also, truth be told, if I have to see ads I would prefer they be for things I care about
• Listen in on your conversations: See "Blackmail".
• Frame you for a crime: Again, do you matter enough to target?
• Fighting back against the government: Again, the vast majority of global north countries are becoming, or have already become, surveillance states. Not having a camera in your car doesn't matter much if they have a camera on every street you ever drive down

I am a strong advocate for privacy, when it matters. Because most people base their knowledge off of vague recollections of Sandy Bullock's movie or an episode of Futurama. And while it is good to be wary, it is also good to actually understand what you can and can't do. Focus your energy on the things that matter. And, more importantly, understand that the moment you "fight back against the government" you need to change just about every aspect of your life. Like, there is a reason good journalists learn to have separate devices that are never powered on anywhere near their personal devices.