What I meant is, desperate people will migrate to wherever there more likely to be able to find housing and jobs. If SF 'solves' poverty and homelessness but i

What I meant is, desperate people will migrate to wherever there more likely to be able to find housing and jobs. If SF 'solves' poverty and homelessness but it remains high in surrounding communities, SF will be overwhelmed by migration from those communities. If California does the same, there'll be migration from other poor states. If the USA does the same, there'll be migration from other poor countries. Hence, these issues really need to be addressed at all levels - local, state, federal and international - in a cooperative manner.