The question was about holding others responsible for their actions.
My scheme of personal responsibility is besides the point. We are talking about public policy.
Do I think that the governments role is to help those that are unable to help themselves? Yes, I do.
Do I think that it is the government's role to arbiter whose 'personal responsibility' warrants them deserving food aid? no.
You are talking about them having children that they should not have. In light of that how is discussion of eugenics inane? You are saying they should not have children. Do you know what eugenics is?