Anarchy would never ever ever work. Human nature is not anarchical but hierarchical.
Ahh, the human nature fallacy...gotta love it
I follow Darwinism (aka Science) - so, logically, humans are a kind of animal and our behaviour is a consequence of genetics.
I do not believe there is anything special about hierarchies, except as a description of one type of animal's social organization.
But the test is survival, and it seems that people survive based on their ability to raise children, rather than the ideology they happen to prescribe to at arbitrary points in history (unless that ideology limits/improves their ability to pass on their genes)
One can argue that the "human animal" has, historically, been organizing tribes hierarchically. However, there was no social meta-hierarchy tying all those "tribes" around the world together under the same system. Which is what we have now. It's called global industrial civilization and it is killing our habitat.
As I understand it, "anarchy" is not about the negation of real human sociality. You can project a "topology" into human sociality and call it "the natural tendency to be hierarchical." That's not what "anarchy" is "against." "Anarchy" is about negating the ultra-large-scale singleton social hierarchy that sucks up all humans into this unsustainable and violent Zerg Swarm that's headed nowhere very fast.