Every year, we all have the option to donate more money to the government or related charities, voluntarily. That money could be put to good use on programs like this. How many people advocating for such policies do it? Probably very few. It's much easier to spend someone else's money than your own. Especially if we can convince ourselves that people with more money than us are bad people and don't deserve the same respect as we do. Where have we seen that play out before?
The only way humans can function in communities bigger than 100 people is enforcement of resource sharing, or they will be expelled/punished. This doesn't mean that enforced sharing is bad in absolute terms. It is relatively "bad" and inefficient, but the only alternative is chaos and no sharing at all.
If someone really believes taxation is theft, that is past the point of consideration. That leaves little avenue for reconcile, makes the bias very clear, and puts on full display the lack of critical thinking.