Land value tax requires a constitutional amendment in California. Once again, with feeling: it does not solve short term problems and is therefore not an alternative to rent control.
Also, you've ignored that renters are still encouraged to increase housing supply with rental subsidies. If they have enough votes to enact rent control, they have enough votes to increase housing supply for the long term solution.
Nope. New landlords are incentivized to build housing. The only thing that could stop them is regulations from existing landlords, but in a place with enough votes for rent control or subsidies, existing landlords do not have the votes to stop them.
Counterfactual: San Francisco has rent control and subsidies (Title 8). Landlords have the votes to stop construction.
Plus; the probem is *regional8. It's the Bay Area as a whole which is chronically short new housing. SF alone cannot absorb all new demand. Similar dynamics affect most constrained markets.
Again; your economic understanding is flawed, as is your grasp of historical facts.
It is not a counterfactual. Once you have rent control, existing renters will no longer be in favor of building new housing. You're confusing having the votes at two different times, among other things.
Also, you've ignored that renters are still encouraged to increase housing supply with rental subsidies. If they have enough votes to enact rent control, they have enough votes to increase housing supply for the long term solution.