We stopped building cities the way they were built for centuries in favor of rural style living with city amenities while simultaneously promoting car centric design to service that development. We started building cities for cars and not for people while ignoring the overall costs of that. There is no one single or simple solution to such a complex problem. Removing or reducing housing as a market force would be a step in the right direction. Housing isn't some luxury service someone can stop using if they can't afford it.