I'm a tech booster, and building and zoning restrictions certainly don't help the housing problem here. But I think it's a wee bit disingenuous to suggest it's as easy as waving a magic wand and watching all the house prices fall to Stockton levels.
Even if the rate of new construction pentupled, it wouldn't lower house prices; at best it'd make them increase at a slightly slower rate. It's a good idea on its own for the purposes of environment and urban development, but pretending that it'd suddenly allow a day laborer or a teacher's aide to be able to afford rent or ownership here adds as little as the people saying tech workers are source of all evil in the world.