Medieval Iceland and the Absence of Government
An Anarchist History of Upland Southeast

These are your only examples? Pretty sure neither of those societies provided anywhere near the freedom nor the prosperity the US Constitution has for it's people. Furthermore those societies were taken over by in Southeast Asia by communist dictators (most likely) and Iceland has a fairly reasonable government these days.

Anarchism is a pipe dream of philosophy lovers, in reality it never works, you still have provided 0 examples of an actual anarchist society that compares with any major nation state. You will never be able to provide an example because Anarchy will never actually work except to sell t shirts to your mostly simp fan base.