> It is demonstrably harmful to the enviroment, physical and mind health and the society in general. I'm having trouble understanding how single-family housing

> It is demonstrably harmful to the enviroment, physical and mind health and the society in general. I'm having trouble understanding how single-family housing is less harmful to the environment, relying on this statement and my back-of-the-envelope calculations alone. Likewise, what are the effects on physical and mental well-being for people who have to live in the street, because affordable housing is "banned", and they can't afford a suburban house?