I think it's important to keep in mind the difference between metadata versus full video as well as the difference between centralized versus device local solutions. I don't want BigTech tracking my every interaction any more than the government but I don't mind if the dash cam on my neighbor's car logs when I walk by his driveway so long as it isn't uploading that data to a third party. But of course most people don't want to self host and most services aren't E2EE so I won't try to pretend that any of this is important in practice at present. But if we're thinking about possible regulations and the world as we'd like it to be then it becomes relevant.

That's an important distinction, but yes, it's irrelevant here. If Apple offered on-device, privacy-preserving, not-uploaded facial recognition, I wouldn't be inherently opposed to it. There's no way Facebook wouldn't feed that data right into their own Eye of Sauron.

Same with Logitech Circle doorbells that tell you which of your friends or family is at the front door, using local computing. That's a great feature. I wouldn't use a Ring camera that was shipping the data back to Amazon and any number of police departments.