The solution is to limit the expense of non-contributing people in our cities. Fact of the matter is is that certain lifestyles require a certain amount of ability to produce value. No one gets upset when you say that a middle-class person can't buy a luxury automobile without greatly increasing the ability to earn, but the same principle applies to the basics as well.

Seattle and King County were spending a cumulative $100,000/year per homeless person. That's higher than the per capita income of the county. No way to sustain that in the long term. If you aren't prepared to tell high-school dropouts, drug addicts, and the lazy, that they shouldn't aim for more than an ultra-high density apodment and generic brand everything and no kids, then you can't have a high standard of living city for anyone.