I don't know of any "regular" people who stayed in the bay, except for a relative who's stuck there because of shared custody over kids with an ex and can't practically move. She'd like to though.
If SV workers move to a state that welcomes newcomers instead of punishing them don't expect the same meteoric property increases.
Disclaimer: I'm from the Denver metro so am obviously biased here. Also please don't move here because housing is expensive enough ;)
https://www.sfgate.com/renotahoe/article/bay-area-transients...
For us, a lot of our family actually is in SF or Seattle. We're a skiing/biking family and I need to be in SF pretty regularly (but not daily) so SLC was the obvious choice. Portland was a candidate because it also has short flights to SF but I figured if we were going to move I wanted world class skiing and biking, in my backdoor, not just decent skiing 1.5hrs away.
Changing your question a bit: Given that prices here in Portland (and Seattle) are relatively high now (though not nearly so much as SV) what are some other lower cost alternatives on or near the west coast? Maybe Spokane. Possibly Olympia. Eugene? Though now we're getting into smaller urban areas.