The problem with libertarianism is that it's too strict. All taxes are robbery under libertarianism. Imagine governments without revenue? There is no such thing.
Um, that's kind of the point.
Now, show me. Where is a libertarian country? Not yet right?
It's arguable that the first 150 years of Murica was primarily a libertarian state...Even so, we didn't even make it past the first president before all their high minded principles were violated....So why even bother with a state at all?
Instead, give each local government reasonable autonomy to raise taxes, guard security, and make any rules they wish. Make sure those local governments compete with one another.
no
If those local governments have autonomy then chance is, one of them, will be libertarian/minarchist. Then you move there.
So what if other local governments are not libertarian? So what if other governments are racists, religious, or whatever. All we need is one libertarian region, and we simply move there.
Even under free market, we do not really have anarchy. We have competing regulated venues.
You don't go to a cinema and then let the market decides what movies are in the cinema. Cinemas have rulers/owners. They decide what movies to show you decide which cinemas to go.
In a sense, the market does decide what movies are in the cinema. Whatever the rulers/owners decide is the decisions by the market.
On top of those cinemas are governments that ensure that the cinema do not defraud their customers. You don't go to a cinema, pay for ticket, and then suddenly have the ticket price go up after you pay.
However, governments that govern those cinemas do not have to be thick. Even with no governments regulation cinemas tend to be fair. Cinemas that are full with thieves, thugs, pick pockets, will run out of customers. Cinemas have incentive to treat customers fairly.
The same with local governments. Let local governments decide what rules to make. Let local governments decide how they tax people, how they build infra structure.
We need a thin layer of libertarian governments on top of that. The layers need to be thin. It should mainly prevent wars between local governments. More like how Nato/WTO govern the countries.
The local governments will tend to be fair. If they charge too high taxes, customers will go somewhere else. In fact, I would expect income taxes will be gone soon. Too easy to avoid income taxes. It'll be replaced by less oppressive land tax. A thin layer of government on top of that will ensure that taxes do not increase abruptly. If the local government raise taxes, you have plenty of time to move out.