Is clear view requiring people to live in California or the EU for California/EU rights to apply??

Those state’s rights should apply for anyone present in those states (and possibly airspace) unless they idiotically wrote their laws.

Yes, Clearview requires it. Technically, the laws can only cover residents of those areas so that is how Clearview is able to require residency.

I like this idea of residing in CA - for a weekend or whatever on a yearly trip. What about not having an ID?

And pay CA income taxes. And pay exit tax in case you want to leave.

You only need to pay CA income taxes on CA income. If it is your second/vacation home and you don't earn money there, your tax home is obviously elsewhere, while still being a legal CA resident.