Are Antistate Libertarians Hypocrites Re: Voluntary Agreements?

Sneak-peak at the ending/TL;DR: Is the current State just an enormous and (highly dysfunctional) "ancap voluntaryist enclave" already, and libertarians are actually the NAP-breaking enemies of civil agreement?

If we anti-state voluntaryists are to be intellectually honest, we need to confront something. I'm trying to work though this and am seeking thoughtful discussion and suggestions for further reading on this topic. Read on for a kind of extreme devil's advocate thought experiment:

Say I set up an anarchocapitalist/voluntaryist enclave on some previously unclaimed-by-any-State-or-peoples land. A lot of land. It's all going well, we've got plenty of "members" who choose to live on my land under mutually-agreed-upon terms, we've got lots of resources and various "governing" and organizing principles and systems. All voluntarily subscribed.
Some people express interest in more thoroughly using some of my property, so I agree to let them do so, under certain terms, with certain behaviors forbidden and with a kind of "rental" fee paid to me yearly based on the particular land and their particular activities. Again, they agree. We can say they "own" the property, but not exactly purely because there are stipulations that I set that they agreed to. Fine.
This turns out to be popular and is repeated a lot of times until most of MY land is being used by a lot of people in this way, according to voluntary agreements.

A few generations pass. The children of some of these "tenants" decide they no longer want to honor the agreement fully. They want to do whatever they want, against my wishes and our contract; also they don't want to pay me anymore either (they call it "theft"!).
Trying to keep the peace, I tell them that this is a voluntary agreement and they're free to leave if they no longer want to honor it. But they definitely can't just break the terms, squat on my property and not expect me to do anything about it...
In fact, our agreement very clearly states that my own contracted collection and protection agencies will work on my behalf to make me whole if the agreement is broken and the perpetrator insists on belligerence. So essentially even the contract enforcement via use of force was voluntarily agreed to and thus not "coercive".
Being a nice, reasonable guy (and one who would like to attract other nice, reasonable "tenants" in the future), I repeatedly remind these agitators that they can and should vacate if they don't like the terms of the agreement.

And get this, they say, "I was born here, I like it here! I'm not going anywhere! And besides, nobody else with property will let me do whatever I want on their land either! Anyway, the other places suck - it's better here; there are more resources, better neighbors, everyone speaks my language, you are usually a decent "landlord"... So, no, I'm not leaving. And on top of that, this property is now mine, not yours. If you send your protection or collection agencies out to enforce our agreement, I'll kick up a lot of shit and maybe even get some other "tenants" to feel the same way - and we might all band together. Then we'll fucking steal more land and redistribute it amongst ourselves and perhaps even attack you, physically... Come at me, bro."

...So what do I do? I've got a bunch of contract-breaking bandits who say our agreement is actually theft of their shit, and they insist they have a right to my property. I think maybe they're communists now? If I invoke the enforcement clause of our contract, they'll accuse me of being the "authoritarian", thieving bad guy!
I thought we were running a voluntaryist utopia, but it got infested with a bunch of property-rights-disrespecting, violent collectivists!

Right, okay, so, in the above fiction, "I" am "The State" as we know it today and my "tenants" are extreme libertarian, anti-state, freedom maximalists. Their argument for personal liberty rests upon breaking a voluntary agreement because it suits them. And they refuse to "just leave peacefully" mostly because they are cozy where they are (and "there's nowhere else to go", as if that's my problem.)

Put another way: Is the current State just an enormous and (highly dysfunctional) "ancap voluntaryist enclave" already, and freedom advocates are actually the NAP-breaking enemies of civil agreement?

So, back in the real world, are antistate voluntaryists guilty of violating their own core principle at moment zero of their philosophy?
Below are some items I see as contributing to the ambiguity and antagonizing the problem. For almost all of them, I don't think a resolution is obvious in "libertarian logic", but I hope others will join in the discussion. I think it's really important to address this head on in order to be honest and ethically/logically consistent.

• "Citizenship" (the "tenants" of the thought experiment) is something one is involuntarily born into. A new immigrant wouldn't have a leg to stand on pulling the same move. Just like in an imagined ancap enclave, if you agree to a private place's terms upon entry, it is indefensible - in libertarian logic - to break the terms. Being born under an agreement is a confounding factor
• "Private property" ownership (jurisdiction-specific) terms. How much is a property deed contingent upon legal stipulations set forth by the State? "etc. etc. pursuit to all local and federal laws, etc etc". We use the term "own" for land, but this is not the same sort of Platonic ideal "own" that you encounter in libertarian philosophy (nor internet poasts)
• "The State" is NOT, in fact a person who owns property, nor an explicit signatory on "citizenship contracts". But there's nothing - in libertarian philosophy, logic and ethics - that disallows "deferring" or establishing abstract bodies and agreements that deal on behalf of the parties in an agreement. Power of attorney, etc. (Lysander Spooner's work comes to mind here)
• If a voluntary agreement is in place between parties A and B, and the agreement includes terms for what happens to the physical property of A and B after their demise or exit from the system - are those 2nd and 3rd party future terms "valid" for the eventual individuals who have to deal with them? Is their validity up for renegotiation later? How, and by whom?!

In the bullets above, I've reached the "I just wrote a bunch of stuff and confused myself, now I'll try to list some things that I think I'm confused about so I can think and read about them more" stage of thinking aloud. I'll stop there.
If you have thoughts on this (agree, disagree, have solved this and will point me to prior art, want to tell me I'm retarded, etc.), please contact me on nostr or reply to this post.