I assume this would mean trying to vote for politicians that would remove the artificial supply and demand in somewhere like San Francisco where, if stories are correct, the local population doesn't allow for dense development. I'm not sure what you do in locales like New York where development is already dense in many areas.
NYC has some similar problems, albeit not as severe. IIRC much of the existing housing in NYC is 'illegal' in the sense that current zoning would prevent it from being built today due to density restrictions.
For a counter example, you can look at Tokyo as a place that's more of a free for all, and indeed while it's still fairly expensive, it's much less so than the bay area or NYC.
