#2. An anarchist society is unable to protect its citizens from foreign invasion.
A fully anarchist society with no collective means of defense is at the mercy of foreign powers who have not abdicated such means of survival. An anarchist state is at the mercy of anyone who wishes to expand into their territory unchecked. The Native Americans can attest to this.
The constitution laid out the means through which American society can protect itself. If I band together with my neighbors to form a mutual defense pact, and we call that a constitution, it would necessarily have the same effect as government. If government is to exist, its number one job is to protect citizen’s liberties, and after that to protect their lives through a reasonable national defense that is not overly interventionist or burdensome on its taxpayers.
Citizens should absolutely be free to seek the means of self-defense, and should not be prohibited from exercising those means vigorously to defend their own lives, liberty, and property. They should be free to join together for mutual protection, provided they do not infringe on the fundamental natural rights of other citizens in doing so.