user: We’re going to attempt to continue work on this article I’ve been writing. Specifically the “Borders as Invitation Enforcement and the “Full Cost” Principle” section. Try to work up a proof for me and insert it. [Context: Notes: Our Articles/The Libertarian Position on Borders Course Corrected.md] [Timestamp: 2026/04/26 00:16:42]
ai: Borders as Invitation Enforcement and the “Full Cost” Principle
Now that we have fully dispelled the unlibertarian notions:
- That all “public” property is 100% owned by net-tax-victims.
- That one can justify mass collectivistic democratic command and control of “public” property.
- That one must choose the lesser of two coercions as a libertarian.
It seems a bit odd to continue on and address this strategy for modern immigration based on this crumbled foundation. So instead we’ll make it even harder on ourselves by addressing the future “ancapistan” version of it suggested as the proper way for future libertarians, free of any state coercion, to regulate their property, borders, and visitors.
“But on what grounds should there be a right to un-restricted, “free” immigration? No one has a right to move to a place already occupied by someone else, unless he has been invited by the present occupant. And if all places are already occupied, all migration is migration by invitation only. A right to “free” immigration exists only for virgin country, for the open frontier.”
“In a world where all places are privately owned, the immigration problem vanishes. There exists no right to immigration. There only exists the right to trade, buy or rent various places.”
—Lew Rockwell in Immigration and Libertarianism [[#^13]]
“A trustee’s guideline regarding immigration would be the “full cost” principle. That is, the immigrant or his inviting resident should pay the full cost of the immigrant’s use made of all public goods or facilities during his presence. The cost of the community property funded by resident taxpayers should not rise or its quality fall on account of the presence of immigrants.”
—Lew Rockwell in A Realistic Libertarianism [[#^14]]
P1) In a free society, all land is (or would become) privately owned with no unowned or virgin territory remaining.
P2) No one has a right to move onto or through property already occupied by someone else without the explicit invitation of the present occupant(s).
C1) Therefore, all migration/immigration must be by invitation only; there is no standalone right to immigrate or travel. (P1–P2)
P3) Roads, parks, and other community facilities function as jointly-funded or covenant-enforced property whose costs and quality must be protected for existing owners/residents.
P4) The proper rule for such property is the “full cost” principle: any immigrant (or their sponsor/inviter) must fully internalize all marginal costs imposed on existing owners’ community property so that those costs do not rise or quality fall for the original payers.
C2) Therefore, the consistent libertarian position is to enforce invitation-only border crossing and require full-cost recovery from immigrants or their sponsors. (C1, P3–P4)
The plague of flies in this ointment is quite simply all businesses open to the public, all people attempting to sell their property to anyone that would purchase it, and all property owners wishing to provide accommodations open to the public such as roads or parks—just to name a paltry hundred million people or so.
Many property owners do issue blanket or general invitations. A shopkeeper who hangs an “Open to the Public” sign has invited anyone who wishes to enter and trade. A landowner who advertises “lots for sale to any buyer” has invited outsiders to inspect and purchase. A road owner who sets a toll or a park owner who sets rules has already decided the terms on which outsiders may enter. The invitation-only model treats the aggregate of all owners as a single exclusionary club that would, by default, want to keep most foreigners out. That assumption is false in a genuine free market. The model also quietly re-collectivizes “community property” and “resident taxpayers” so that a supposed trustee can impose uniform rules—precisely the collectivization error dismantled in the previous sections.
The donut-encirclement problem returns here with a vengeance. If the owners of the land surrounding your homestead all refuse to invite you or your invited guests across their property, they have effectively imprisoned you on your own land. An easement (or some reciprocal right-of-way covenant) becomes the only non-aggressive remedy. Treating every border crossing as presumptively illegitimate unless individually pre-approved by “the owners” simply recreates this encirclement on a continental scale.
Finally, the “full cost” principle cannot be administered without either (a) a centralized trustee who decides what counts as a cost and who owes what—an obvious regression to state-like authority—or (b) purely voluntary, case-by-case bargaining between every traveler and every affected owner. The latter is indistinguishable from ordinary market transactions and requires no special “immigration policy” at all. The former is incompatible with libertarian principles.
Thus the invitation-plus-full-cost construction collapses under the same weight as the other closed-border arguments: it either assumes a uniform owner will that does not exist, or it covertly reintroduces coercion and collectivization while claiming to have escaped them.
You can copy the block above and replace the existing “Borders as Invitation Enforcement and the ‘Full Cost’ Principle” subsection in your note. The proof follows the same premise-conclusion style and rigor as the rest of the article (e.g., the Anti-Collapsitarian and Voluntas Populi proofs). It steel-mans the Rockwell position before the subsequent paragraphs tear into its weaknesses (public invitations, collectivization error, donut problem, administrability). Let me know if you want the rebuttal paragraphs tightened, expanded, or if we should add a counter-proof showing the consistent open-access position under private property. [Timestamp: 2026/04/26 00:32:47]