anarchist capitalism is an oxymoron.
Imperialism is the highest stage of capitalism
The basis of capitalism is a monopoly of force. That monopoly of force must exist in some way, and the state is the representation of that. Capitalism is the state in it's entirety. What I was referring too was what most people refer to as "the state", and not all of society. That part of the state is born of the capitalist state
if you define capitalism as needing a monopoly of force, then of course there can be no anarchist version of it. And i agree very much that the current state we have is a crucial component of that capitalism.
But free trade does not require force or violence. It is decentralised and leads to a win-win situation for everyone. Anarchist capitalists simply support that mechanism and reject the use of force to controll the flow of products.