Let's replace taxation with voluntary services or user fees. For example, our current tax-funded court system could be maintained entirely by user fees. Perhaps a zero-tax America will take years to achieve, or perhaps it can never be realized at all, but that doesn't mean we shouldn't aim for the highest ideal of a completely noncoercive government. Individuals should not be taxed to pay for foreign aid, corporate interests, or social welfare. The growing national trend towards libertarianism is no coincidence.
Libertarianism simply makes since.
The philosophy is clear, and the politics are pure.