Ancient Germanic and Celtic tribes, famous for having no unjustifiable social hierarchies

Is this a joke? I thought anarchists were in agreement that anarchy is more than just statelessness. You may as well have posted a picture of Somalia c. 2010

is this bait

I hope it isn't sectarianism to say that I'm pretty sure Anarchists of today are not advocating for the small kingdoms and land barons of 220 BC Europe, but trying to build Anarchism based on the foundations of today.

Small kingdoms ruled over by petty hereditary rulers

This is a good argument with a bad example. The Mediterranean in 220 BC was definitely not anarchist in most places, just because a society isn't a "state" does not mean it was an anarchist society where people were free to determine the course of their own lives. If you roll this map back ~3000 years then yes, a lot of Neolithic societies were pretty close to anarchist ideals, where there were no "leaders" except for specific situations based on expertise, there was mass migration and tons of villages all with their own pottery styles and even languages mere miles from one another, a kind of veritable explosion of different ways of life all made possible by the recent spread of farming. States have only been around for roughly 5,000 years or so. Humans are millions of years old.

Two grey sections are explicitly labeled as kingdoms.

using your own example, the statists are correct

The dice are loaded. You can’t win. Because when the skeptic says “society,” what he really means is “state,” even “nation-state.” Since no one is going to produce an example of an anarchist state—that would be a contradiction in terms—what we’re really being asked for is an example of a modern nation-state with the government somehow plucked away: a situation in which the government of Canada, to take a random example, has been overthrown, or for some reason abolished itself, and no new one has taken its place but instead all former Canadian citizens begin to organize themselves into libertarian collectives. Obviously this would never be allowed to happen. In the past, whenever it even looked like it might—here, the Paris commune and Spanish civil war are excellent examples—the politicians running pretty much every state in the vicinity have been willing to put their differences on hold until those trying to bring such a situation about had been rounded up and shot.

Fragments of an Anarchist Anthropology

advocating for primitive european tribalism in which everyone disabled will die and slavery was okay

Is the white shit fog of war?