Ok I should preface by saying I think ancap is dumb and having a slight disagreement with what you’ve said does not mean I’m not defending them. They’re asshats.
But: imo, anarchist thought escapes definition. There’s no such thing as anarchism (in the sense of an agreed-upon political philosophy), only anarchists.
Readers of Rene Girard might describe coersion (insofar as it’s a natural result of hegemony), as a sort of force of nature, like violence, that, if society doesn’t find a healthy way to express, will come out sideways, in ways that are anti-social.