I do a lot of housing policy activism outside my daily work in tech and I entirely disagree with you. On a large scale, real estate associations and "landlord" associations are an incredibly influential lobbying coalition in the state of California, and on the whole, they exert a hugely negative influence o housing policy. I don't think there is any reason to advocate punishing landlords where "punishing" is throwing them in jail, but the problem is that 99% of landlords will say that anything that you might do that lowers the growth in value of their assets or increase taxes on them is punishment, and they lobby in sacramento on that basis. The reality is that most of the policy changes that California needs (zoning reform, property tax reform, vacancy taxes, etc) will have the landlord lobbies against them on the basis that they are "punishing landlords".

On a larger scale, something like 85% of the state legislators in Caliifornia are themself landlords (they own a unit/home that they lease to someone else) and are profiting off the housing crises not just by owning their own home, but by profiting of the exorbitant rents of others. On some level, the housing crises in california is caused by the state legislature fighting for their own class interest and their own personal financial interest as landlords.