While I don't disagree with you, I think we can have better conversations on HN. Honestly I would love to hear from someone with a different opinion than me. I really do want to hear the counter argument. But this is also the technology that made Joseph Redmon[0] (creator of YOLO) leave vision research. We can have ethical discussions. We should have ethical discussions. And different opinions are how we learn. And I do think HN is one of those places to have these ethical conversations.
I hope you find a satiating interlocutor, but I think the most obvious explanation is probably the most correct one in this case. I know this theory doesn't exactly satiate one's intellectual curiosity, but sometimes the truth is boring.
I mean I agree, but with how prevalent this is and how profitable it is, I would imagine there's someone selling the technology. Especially here. I really do want to hear their opinions and have mine challenged. Maybe there's something I don't see and I'm overly paranoid. Hopefully we'll see some dissenting opinion.
I suspect that this kind of technology is already in use by authoritarian regimes with more diverse and relaxed ethical standards when it comes to surveillance.
[0] https://pjreddie.com/