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In wolves it’s fake, in humans it’s quite accurate.
It still exists today so don’t tell me it was never a case of the strongest = leader. Drug cartels are effectively states, and ruled by extreme violence (even internally)
Even if your argument were accurate, that would be considered a state. A group of people agreeing on rules together is a state.
Like I said, with few enough people and it could be considered “not a state” but there isn’t any realistic way to have a stateless society of even tens of thousands of people, let alone the millions and billions of people that exist these days.
I mean, if you want a great example, Genghis Khan killed his half brother at 8 years old in order to “secure his family position” then went on to lose a bunch of battles, then win a bunch of wars and murder his way to the top of an empire.
If you don’t think that’s an example of strongest = leader, I don’t know what to tell you.
Modern cartel leaders are very similar in most cases, they’ve schemed, battled, and murdered their way to the top.