Portland or Seattle would for those criteria well as long as you don’t mind rain. Both very progressive cities, weather is generally mild (rarely above 85, rarely below 30, usually less than 2 weeks a year with snow).

Why on Earth would they make it Nvidia exclusive given how thoroughly that company has screwed the pooch on open source drivers and consequently how dominant AMD has come to be in Linux gaming?

The demographics you describe in 1 and 2 are de facto an incredibly small minority compared to other, more typical forms of immigration. Just think about what percentage of the population is wealthy enough to emigrate, let alone engage in borderline sex trafficking.

As for #3, yes, we have a party who is currently succeeding in pitching populism and proto-fascism dressed up in culture war nonsense. The job of progressives is to address those same economic concerns in a manner that actually works rather than the trickle down myth from the right that has so thoroughly gutted the middle class.