Most people move to the Bay to get a good job, which is only possible in a large, vibrant, globally connected city. Everyone -- every single person -- who buys or rents a house in the SF bay today does so because they either have or want have "a good job." Is there a single person alive who has bought a house on the peninsula recently because it's a quiet place where nothing much happens?
The Bay Area is extremely special. It's the only place to go to get a good job! There are probably 500,000 people who would move in next week if we had the apartments to house them. That is absolutely not true of Stockton.
Someone who commutes to SF from Stockton isn't a resident of Stockton. They're a resident of SF who is priced out!