People often think greed is at the center of being opposed to taxes. I disagree. Greedy people are often pro-tax and some anti-tax. No one is very accused of being greedy because they don't want someone to steal from them.

That said, it is true that charity is needed in functional society. I personally believe the community, churches, and individuals are far better at helping people than the state. Just because the state can steal a lot of money and claim to help people with it, that doesn't mean they are effective at solving problems. We've seen they are not. The fraud and perpetuation of poverty has shown us how it works out. We have plenty of evidence. Not to mention the massive infrastructure the state constructs full of waste.

Its true that private charity can and does have the same issues. The difference is that private charity has the pressure of the donor withholding funds. Competition forces better outcomes.

Still, you need a moral population that actually cares for people. Thing is, we are told we live in a system where the will of the people is respected. So if people believe that they should believe people supporting state welfare would also support private charity.

If people truly believe in the ideals of democracy they should support voluntary giving over theft. If they don't believe it would work then do we really live in a system that enacts the will of the people?