Before the suburban cowboys descend to insist that they should not be expected to be part of the solution: the catastrophe of the underclass and the decline of the cities are linked, and both are largely, though not entirely, the result of LBJ and the Great Society. The modern suburbs are artifacts of questionable social policy: we subsidized the extension of infrastructure and utilized eminent domain to build the roads, all to enable middle class flight. We systematically destroyed traditional neighborhoods and herded the poor into large scale resettlement projects, dumped in areas where the local political opposition was weakest, and then wondered why these so often turned toxic. Many of the suburbs effectively closed themselves to affordable housing through restrictions on density, multi-family housing and occupancy rules that prevent poor families from doubling or tripling up to move to a better area. (Some of this happens illegally, to be sure.) The schools were wrecked as a matter of misguided social policy. And long term dependency was a deliberate policy choice as well.
Bad policy created this problem. Good policy is needed to correct it.