I agree. That’s why I think anarchism would only work if everyone in the world share the similar values and culture, in others words “like minded” enough to trust each other. But that will take a really long time to happen.

The most successful anarchist society I’ve seen in media is the Fremen in Dune. They all get along despite having local quirks from their own immediate community on both southern and northern halves of Arrakis. But this then runs into trouble of being vulnerable to interplanetary invasion. Which then leads the requirement for a universe-wide cultural harmony to allow for a universal anarchism.