Density is the response to land scarcity that takes away power from landlords, not the other way around. When there's massive land scarcity, but density is not allowed, it gives landlords far far more power than if density were allowed.
Land value taxation is one way to reduce speculative land use by landlords, but it's rarely used, unfortunately. And in California it would require overturning Prop 13, a hugely regressive tax policy that has been somehow falsely enshrined as helping the little guy out, when in reality it mostly helps landlords and speculative land hoarders.
Land value taxation is one way to reduce speculative land use by landlords, but it's rarely used, unfortunately. And in California it would require overturning Prop 13, a hugely regressive tax policy that has been somehow falsely enshrined as helping the little guy out, when in reality it mostly helps landlords and speculative land hoarders.