You make good points, and I apologize for being a dick. It offends me, though, when I see someone say, "I don't feel like it. Why don't YOU do all the work?"

I have never claimed, nor have I seen anyone in here claim, that libertarianism maximizes the good. Rather, I claim, and I believe the others do as well, that it minimizes the harm. A minor distinction, to be sure, but an important one.

Here are some facts:
Taxation hurts the poor the most.
Giving tax breaks to the poor and taxing the rich until they are poor just drives the rich out of your country.
Public charity (ie, welfare) is inefficient, and often corrupt.
Private charity does a much better job of taking care of people.
With less taxation, the economy does much better.
With a better economy, there are more jobs.
With lower (or no) minimum wage, there are more jobs.

I'll leave it up to you to make your conclusion from those facts.