Libertarian theology apparently does not believe in national borders.
That's one way to read it. The other way would be to reflect on how few illegals were in the country in 1975 before the mass invasion began in earnest. One of the things that makes me hate my government, regardless of which party holds power, is the cross purposes at which it works due to its ever-expanding size and desire to control. One arm of the government decides illegal immigration is just fine and halts state attempts to fight it, then another sets up unconstitutional 'checkpoints' all over the Southwest well within the border. This type of insanity has increased under Obama. One arm now send weapons to 'freedom fighters' aligned with al-Qaeda, while another monitors all communication and gropes me at the airport under the guise of stopping al-Qaeda.
Libertarians are not your enemy. We hate this administration at least as much as you do.
Libertarians position on illegal aliens is essentially open borders like the democrats. No thanks.
We now have open borders as an excuse for a police state. Everyone is a suspect and has to show papers.