Earlier quoted context omitted.
I'm quite perplexed on what point you are trying to make by dying on this hill. That this does solve some hidden problem? ("if it really doesn't matter, then why do they need to collect it?") That folks should be conditioned to freely provide any data, scan, or biometrics upon request? When the government says "jump", always ask "how high"?
Yes it’s just as meaningless as putting a cover over your laptop camera, any bad actor that can access your camera can also access your microphone and you can get a lot more information from a microphone.
I don't think anyone ever shared a naked picture taken with a microphone (semi-related: https://www.yahoo.com/news/tsa-backlash-grows-over-leaked-bo...). I don't think it's terribly rare to join a meeting not realizing that the camera option was still on (https://www.dailymail.co.uk/news/article-13240957/Zoom-view-...)
It's also not clear what this has to do with the TSA taking pictures at the airport. At this point I feel like you're just arguing for the sake of argument