Whenever you do not comply in giving about half or 2/3 of what you produce to the state, that's what happens in the end: they put a gun against your head, or force you violently to comply in any case.  They call it tax evasion.  You get "protection" and "public services" you didn't necessarily ask for in return.  What other kind of organization comes and takes a good chunk of the value you produce in an offer you can't refuse, and offers you "protection" and goods and services you didn't ask for in return ?