But if you can't improve on the current situation, then you must admit failure in that area. I'm still waiting for the libertarians and anarchists of this forum to explain how they would improve on the current situation.
I can't tell you how things
would be, for if I could, I would advocate centrally planned solutions. I can however tell you how things
could be.
The problem you propose could be solved by one of the many dispute resolution systems, one of which is poly-centric law.
Poly-centric law is where no one entity can dictate the law for everyone. An individual must agree to the law in order to be bound by it. If you want to see an example of how this can work in today's world, look at international law. Each country has its own set of laws, and they resolve disputes between those legal systems in various ways. A stateless legal system could be similar, but I think would tend to operate with much less violence.