Unfortunately, this is where micro and macro economics diverge. If you take the position that housing will likely always be underbuilt and any new construction

Unfortunately, this is where micro and macro economics diverge. If you take the position that housing will likely always be underbuilt and any new construction in your area will lead to higher rents. Then supporting construction just means higher rent a for you - without any benefit. If we ever actually built enough, then as an individual you should be able to move to a better/cheaper apartment when new construction happens. This hasn't happened in the last 20+ years of urban development.