Those are inseparable from data collection, because that is data collection. The only reason we have to worry about things like Flock is because there's people who will die on the hill that filming people in public is okay, even when corporations do it and use that data for your oppression.

I just don't understand how it's impossible to prevent. We haven't even tried. This is a "we've tried nothing and we're all out of ideas" sort of mentality, which is as lazy as it is harmful.

There's plenty of things in public that you CAN do, but which we prevent pretty well. For example, every human being has the ability to flash anyone, at any time. However, we do a pretty good job preventing that via the law, despite the fact there are absolutely zero technical or physical limitations to pulling out your dick. If anything, it's one of the most human things you can do - humans have penises and vaginas because they are animals.

And yet, despite the availability of such actions, I don't have to worry much about seeing a veiny cock at the local starbucks. But you know what I do have to worry about? Being filmed, and that video being uploaded to hundreds of computers globally in real time, where it can be used for any and all purposes. Including denying me a loan, or a job, or even imprisoning me. And humans don't even have cameras built right in to their crotch.