Gotta love the NYTimes for the tendentious moralizing. People having more choice, and exercising it, is a risk! Attempts to have a backyard or extra bedrooms, or just pay less for real estate, are dangerous and wrong. Worse, if you can buy extra bedrooms you might be tempted to have kids and we wouldn't want any of those consuming the Earth's precious resources would we :P
(Not that there isn't anything to be said in support of that point. But it's tendentious and moralizing all the same.)