SF is now the most expensive city to live in, in the US base on a few sources. While it's true normally growth and new jobs is seen as a good thing, here, it's specifically the tech sector that is growing with the majority of hires and wage increase focused entirely on developers mostly.
Imagine if rent goes up 300% or more in the past few years and you work as a waiter or any other number of non-tech jobs. Increase salaries and demands for hires in the tech sector would have nothing to do with you nor would you probably qualify for a job yet you suffer from all the consequences of the growth and demand happening around you aka your wage is the same but trying to rent a place now costs several thousands of dollars more than it did 5 years ago. That's essentially the problem locals who aren't in the tech field are facing.
SF already have the highest minimum wage in the united states. It has it's own minimum wage as a city compare to the state. That said, even if you increase to say $20/he, that roughly translate to about $40k/year. Compare that to where 6-figure salaries are the norm for entry developers (where is was maybe just $60k for fresh grads a few years back) and you can see the growing discrepancy. I understand that developers are viewed as providing greater value this they should be paid more than minimum wage laborers but that doesn't change the situation with housing costs for both buying and selling. In some cases a two bedroom place these days can go average around 3-4k for a decent place in a decent neighborhood.
Imagine if rent goes up 300% or more in the past few years and you work as a waiter or any other number of non-tech jobs. Increase salaries and demands for hires in the tech sector would have nothing to do with you nor would you probably qualify for a job yet you suffer from all the consequences of the growth and demand happening around you aka your wage is the same but trying to rent a place now costs several thousands of dollars more than it did 5 years ago. That's essentially the problem locals who aren't in the tech field are facing.