What safety net?

As Matt Yglesias points out, a President Romney intends to follow an austerity program with respect to the poor. Romney, Yglesias asserts:

…wants to cut the safety net, cut the health care part of the safety net, muck around with the federal workforce, and then cut the non-health care part of the safety net. To further clarify, he states that he “will immediately move to cut spending and cap it at 20 percent of GDP” while increasing defense spending. Which is to say he wants to cut social safety net spending. What’s more “as spending comes under control, he will pursue further cuts that would allow caps to be set even lower so as to guarantee future fiscal stability,” thus cutting social safety net spending even further.