How would that work for something like the Hanford nuclear contamination zone[0], which threatens the water supply for millions of Americans? The cost to clean up the contamination has run into the billions, and yet there's no apparent private incentive to clean up this mess. If the market doesn't present a solution, are those millions of Americans just screwed?

How would you effectively pay for services that maintain the community behind the scenes, i.e. police and fire department? Swipe a card every time they show up?

How would we pay for the military without taxes? Just sell contracts to private security firms? How do we hold those firms accountable when they commit war crimes, as we recently saw from a former Blackwater contractor[1]? But then how do we pay for the justice system to hold those accountable if not through tax revenue? Make it so only those who can pay can participate?

0: https://www.latimes.com/nation/la-na-hanford-cost-20161216-s...

1: https://www.nytimes.com/2019/08/14/us/politics/blackwater-ni...