Thats not how supply and demand works. The purpose of building more houses, is not to make new houses for the existing, poor residents to live in. The purpose

Thats not how supply and demand works. The purpose of building more houses, is not to make new houses for the existing, poor residents to live in. The purpose is to prevent the NEW rich residents from displacing old residents. For every million dollar condo that is built in the marina SF, that is 1 less family in the mission that will be displaced.