It might be more or less efficient. But we currently have multiple companies making every product. people generally dont say it is inefficient.
All I'm arguing here is that anarchy has a max population density. As you squeeze more human/mile it gets cheaper to pay for some centralized services/give up some freedoms for others.
quite likely & i'm saying the more competition (in everything) the better (lower prices higher quality). Applies to roles gov has traditionally taken (defense, courts, infrastructure).