Everything good that government might do can be done better by private contractual arrangements, without any NAP violations.
My statement stands.
what they were originally supposed to
What the modern idea of government was originally supposed to do was provide a kiked, illegitimate alternative to monarchies, and it's still fulfilling that role very well. Monarchy is a natural result of private property rights - a legitimate king is simply a very wealthy private property owner. Learn about feudalism. Vassalage relationships (King - lords -serfs) are created contractually and are therefore consensual and legitimate. Except there's one thing they fucked up in the middle ages - the notion that the detriments of such a contract (contract slavery - serf status) can be inherited. This is wrong because it violates the consent of the heir of that status - 2nd+ generation serfs were effectively born into slavery. This is the fundamental cause of the general discontent that was exploited by the Rothschilds to incite the French Revolution and all the revolutions that followed, to overthrow the European monarchies.
Monarchy allows for centralisation of power (without NAP violation), which allows for the kind of strong, centrally commanded military that you seem to think is necessary. However, unlike a system with temporary rulers, this disincentivizes abuse of power because the person in power would be fucking with his own private property, which his children will inherit.
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