You're not wrong, but the impulse to recontextualize responsibility on a larger scale probably gets in the way of exploring what communities can do to alleviate

You're not wrong, but the impulse to recontextualize responsibility on a larger scale probably gets in the way of exploring what communities can do to alleviate the problem locally. It also assumes that the causes are the same in all cases where the symptoms appear similar, and that all communities or cities have equivalent resources they can marshal to address homelessness.