You can't tackle homelessness at the city level; a city doesn't have enough resources once word gets around and homeless folks start moving in to take advantage

You can't tackle homelessness at the city level; a city doesn't have enough resources once word gets around and homeless folks start moving in to take advantage of your effort. Until we have better support at the national level, any plans that have ending homelessness as the end goal (or even just warehousing huge numbers of them in shelters, as in pdx's case) is doomed.