Welfare. Foodstamps. Unless you want to claim being a shiftless, lazy bum is hard work.
Welfare and food stamps for shiftless, lazy bums do not constitute a significant part of the tax burden. Not when compared to defense, social security, education, health care, and infrastructure expenditures.
But that's not the major problem with your argument.
In a competitive society there are losers - always have been, always will be. The extent of the problem is illustrated by the figures below;
Percent of Federal Individual Income Taxes Paid by Low Income Taxpayers
Lowest 50% 6.8% 6.1%
Lowest 25% 0.5% 0.7%
Source: Information Please Almanac, page 75. (1991)
and
top 50% earns 86.19% (2000: 87.01%) of all the income.
from Taxing the Rich...A History Lesson
"Let them eat cake" - your proposed solution to the problem of dealing with these people - has a nasty reputation. It can work over long periods of time if applied with sufficient determination by a brutal tyranny. But there's nothing in our history to suggest that we could do so.
Further I find it extraordinary that a person who claims to be a Christian would find such actions moral.
Let me add, by the way, that I - a liberal according to you - believe that such a solution is inevitable unless we come up with miraculous technological and organizational fixes for the world's environmental and population problems. Drastic energy shortages are only the beginning unless we do.