Or maybe create opportunities that people can meet?

Safe, yeah. Private, no. If you want to verify whether a user is a real person, you need very personally identifiable information. That’s not ever going to be private. The best you could do, in theory, is have a government service that takes that PII and gives the user a signed cryptographic certificate they can use to verify their identity. Most people would either lose their private key or have it stolen, so even that system would have problems. The closest to reality you could do right now is use Apple’s FaceID, and that’s anything but private. Pretty safe though. It’s super illegal and quite hard to steal someone’s face.

https://yourlogicalfallacyis.com/tu-quoque

Of course they're not "three laws safe". They're black boxes that spit out text. We don't have enough understanding and control over how they work to force them to comply with the three laws of robotics, and the LLMs themselves do not have the reasoning capability or the consistency to enforce them even if we prompt them to.

I support them , china I mean