I'm not sure tax (itself) is the problem. The government pays for policing, paved roads, public parks and a plethora (that's enough alliteration) of other good things that I, and most of the UK population, depend on day-to-day.
Duplicating infrastructure in the name of a market economy is grossly inefficient, in most cases (Two roads to every house?!). If you can't have competition, then the infrastructure has to be a monopoly. If it's a monopoly, I'd like it to be one where I get some control over the decisions they make. (i.e. a meaningful democracy)
Who seriously wants privatised policing, where justice goes to the highest bidder? Who thinks viacom should own the road network? Imagine if private companies were allowed to set arbitrarily high prices on life-saving medication? </me ducks>
The government may be run by the worst sort of people, but I really can't imagine private owners doing any better.
As I'm sure I've said before, it's the implementation that's at fault, not the concept!
Duplicating infrastructure isn't the problem you imagine it is. We have multiple competing providers of most services, and it's precisely those areas with high degrees of competion ("duplicate infrastructure") that we have the best service for the lowest waste of resources. (The
exceptions you now feel impelled to mention do nothing but
prove the rule.)
Private providers do better because they must
serve their customers, as opposed to agents of the state who can
command their
subjects.
Nobody ever proposed two roads to every house, so that is a strawman argument. As someone who has lived in two communities with private roads, please let me assure you from my own experience that this
implementation of private property is, in fact, trivial.
I enjoy introducing people who show evidence of curiosity to the theory and history of voluntary cooperation, so if you'll allow me...
Some reading/listening links:.
Robert Murphy: Choice
http://www.independent.org/store/book.asp?id=116
Hans-Hermann Hoppe: The Economics and Ethics of Private Property
https://mises.org/library/economics-and-ethics-private-property-0
If you have fully digested those, you can attempt Grokking the concept of market law.
Murphy - Chaos Theory: Two Essays on Market Anarchy (audio)
https://mises.org/ko/library/private-law
If these whet your appetite I would be glad to share more literature reccommendations.
Lastly, I frequently debate positions
against voluntaryists and anarcho-capitalists as well. So please do not assume I
identify as one.
Cheers.
[EDIT] P.S.
Would you rather have the status quo of a market anarchist beverage system, where you can decide to buy water, milk, cola or whatever you choose? Or would you prefer a democratic beverage system, where you are forced to buy coca-cola, but you can vote for who is president of the company?"