There is no more work for the urban underclass with mothers but an absent baby daddy. They need to be dispersed to the countryside where they can eek out a living off the land. When I was young there was useful factory work for the urban underclass. My father owned such a factory and I worked there during summers. But now there is only burger flipping left and retail and other lo pay jobs.
The bigger issue is that the current system provides incentives for the underclass to have children, which perpetuates the underclass problem. Remove incentives to have children, by drastically curtailing welfare, and the underclass would have no choice but to do something useful.