Uhh, anarchos can't establish a separate colony, because they favor the freeing of existing markets from the justice system that is strangling them. And guess what? Without the police, not only will we be free from the threat of the police--but we will also be free to defend ourselves! Perhaps you ought to look more into what anarchist philosophy actually entails. Check out Murray Rothbard or William Godwin. Also, yeah, we should definitely give anarchy a try. Crypto is moving us that way.