Yes, we’ve established that many libertarians, including Rothbard and Mises favored controls on immigration, but as far as I can see neither of them offered specific policies either. I can’t imagine Rothbard supporting REAL ID or greater punishments for business owners, so what’s the answer? Mises speaks vaguely of controlling the borders, but what does that mean exactly? And perhaps Mises was wrong? Mises wants to keep out fifth columnists as quoted by Stephan below. Fine. But how? How exactly does Mises propose that be done? National ID cards? Secret police? What? And if we think national ID cards and secret police are necessary for a functioning society, then why are we libertarians?
Unsurprisingly, No Treason is ahead of its time:
My basic point is that preventing free immigration requires targeting peaceful individuals with deadly force. There is no other way to prevent what they oppose.
Those advocating such immigration control ought to be willing, in principle, to go down and patrol the Mexican border themselves and employ deadly force against a peaceful individual who wants to come mow my lawn.
Indeed. Controlling the borders of the state requires using force, potentially deadly force, against someone who is violating no one’s rights. Furthermore, McMaken is right: our rights will have to be violated in order to close the borders – more taxes, more programs, more agents. And of course, anyone here of Mexican descent becomes immediately suspect and ripe for harassment, both locally and federally.
So, what is the libertarian way to close the borders and enforce it?