Could I expect you throwing some light on what you meant by the state being involuntary and anarchism being voluntary?
Sure, it goes like this:
The State: "Pay your taxes or we will fine you. If you refuse to pay your fine we will jail you. If you refuse to go to jail we will use force against you. If you continue to resist, we will kill you.
The State-less: "Chip in if you want to."
The State: "Go to your assigned school or we will fine your parents, jail them if they refuse to pay, and kill them if they refuse to go to jail."
The State-less: "School's good, I think I'll go."
The State: "We're going to war with a neighboring country. If you refuse, we will draft you. If you refuse to be drafted, you will be jailed. If you resist arrest, you will be killed."
The State-less: "We're being invaded; we should defend ourselves."
The State: "Homosexual marriage is illegal; if you disobey, you will be fined yadda ya."
The State-less: "I couldn't care less."
The State: "We're going to medicate the public water system. If the cities resist..."
The State-less: "Only you should decide what goes in your body."
The State: "You don't like your tax money wasted so you can be spied on? Too bad."
The State-less: "Privacy is a good thing; let's agree to a right of privacy, and certainly agree to never fund agencies to spy on us."
The State: "We can't profit from these plants; illegal, fine, jail, etc"
The State-less: "Weed stinks, please don't smoke it around me."
The State: Ideas so good, you'll be killed if you don't comply.
The State-less: These ideas are good, therefore I'll go along with them.
And lastly:
There is no academic consensus on the most appropriate definition of the state...
The most commonly used definition is Max Weber's, which describes the state as a compulsory political organization with a centralized government that maintains a monopoly of the legitimate use of force within a certain territory.
Anarchism is a political philosophy that advocates stateless societies often defined as self-governed voluntary institutions, but that several authors have defined as more specific institutions based on non-hierarchical free associations.