Hence, my quotes around "market rate". The tech industry can afford to keep pouring salaries into employee pockets, therefore, tech workers will always be able to price out non-tech workers seeking affordable rents in the bay area.
You will never be able to outbuild what Facebook, Google, and the like can pay their workers. Zoning is not the issue, a slanted labor market is. And the tech labor market will continue to soak up whatever housing comes onto the market.