Taking a step back and looking at the situation there really should be a way to "opt out" and still physically be in some part of the country. By that I mean opt out of taxes, any and all civil services, and public use things, basically everything that taxes pay for. There might have to be a zone of the country designated for this for "self sufficient community". Thinking about it Amish are already kind of this way already.
I'm not saying you should be exempt from laws but there should be some legal way to opt out of the system, as a safety valve at least.
When large groups of people congeal into one area, power heirarchies naturally emerge(power in this case being defined as the capacity to influence the behavior of others). Government is merely a codification of this power structure into (ideally) a stable system. If such an anarchist haven was made, it would most likely eventually form its own government, defeating the purpose of the anarchist haven in the first place.
I saw someone do that at a protest and the officer said "I don't see any fringed flags so why don't I take you into custody until the Supreme Court rules". Amazingly, that deescalated the whole thing...apparently scrutiny isn't something Sovereign Citizens are big on.
I imagine the precedent being set is all the contrived prattle the sovereign citizen folks spew (admiralty courts!) being comprehensively dismissed at one time. Be careful what you wish for.
I'm not saying you should be exempt from laws but there should be some legal way to opt out of the system, as a safety valve at least.