Regarding weather .. very hard to find same easy weather elsewhere in the USA. Seattle comes close .. and that’s why it’s also impacted, just to a lesser extent.
* most people will move somewhere because of a job, not because of the weather
* most people don't want even want to move to another city in the first place.
It's not a choice. 99% MUST move somewhere or STAY somewhere because of a job. Without a job, most people can't live.
Albuquerque NM, is every bit as good (i'm told) as the bay area, with 8 times cheaper housing. there are many more examples you can find in the US that have nearly as good weather.
*Albuquerque is a mile high, so its climate is much more like Denver than like Phoenix.
What's not so great are a somewhat dysfunctional and corrupt state government, second-class health care and public schools, and a high-tech community that revolves almost entirely around defense work that requires a security clearance. Many of these would be remedied if Albuquerque somehow got a significant influx of startups.