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.
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
It’s privacy concern theatre without comprehending how good modern facial recognition is from one photo even when running locally on a modern smart phone. The TSA already knows you are on the airplane regardless.
Just like covering up a camera from a bad actor on a laptop does little good compared to the information that can be gleaned by a microphone - the same with a phone.
You are in good faith equating TSA face scans and body scans with vaccination?
While at the same time arguing that they already know you're there, already have your picture from your id, and don't need updated pictures for better facial recognition?
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"?