There is an argument for this. If the public didn't provide a safety net that job would fall to churches and civic organizations. Churches would then be able to minister to the soul while they are providing whatever assistance is needed. Churches would rise back to prominance and only churches filled with people who really care, who are willing to give would flourish.
In that respect it could make for a much better society. Of course, I wonder how many of the libertarians would suddenly see value in the public dole if the alternative was turning to the church.
Not I. I'll take the church's help over the state's anyday. Because if I no longer want the church's help, I can always walk away.