Your last point is the only one I partially agree with. The rest... will make no practical difference to what is going on in the world today.

I genuinely think the only two solutions to this problem that are workable are "zero privacy, zero freedom" or "fuck the children, we don't care".

Now, to be fair... there is a middle-ground that is neither of those options that I believe would be much more effective and allow us to retain our freedom and privacy and keep kids a lot safer. It's called education. But... no one will go for it, because I think for it to truly be effective you'd have to go as far as showing very young kids all the darkness that's out there and lay it out in paintstaking detail exactly how it works and deeply drill it into them. Ain't a snowballs chance in hell anyone would go for that, BUT... would it work? I'd bet you bottom dollar it would. The current extent of this education in public schools is a half hour visit from a police offer to the classroom and handing out a sheet to the kids and giving a 'good touch' / 'bad touch' talk. What's needed is a full length university level course on the whole topic from end to end.

If you're in an adversarial relationship and need to defend yourself the best thing you can do is "know your enemy". But no... "they're too young to learn about that stuff, we need to shield them from it - think of the children!" is the reasoning people throw back at you when you suggest it. It hands down has to be the number one thing that could actually move the dial significantly, and it's just completely unpalatable to the majority of the populace.