I remember one of the questions to identify political bent for the Nolan Chart was, "should peaceful people be allowed cross borders freely?" As our Founding Fathers understood it, the answer is a resounding, Yes! Yet in our day and age, who will be the arbiter of determining who is peaceful and who will wake up and recognize an invasion? Just to let you know how invested in this I was, I once sat next to David Nolan at a $100.00 dinner.
The fact that every ballot within the LP convention must have the choice "NOTA" (none of the above), means an inevitable schism is always just around the corner. A schism like there was after 9/11 when those in the Libertarian Party who saw the attacks by Islam was initiation of force (thus requiring a principled libertarian response), and those that thought the use of force by Islam was retaliation for initiation of force by the the US (Paulists, etc.) against Islam, caused half of the the LP to grab their balls and go home.
The Founding Fathers had the right balance. Leave the individual to self-govern and only what he cannot reasonably be expected to do himself give it to the next level government.
All political positions have their limits. The Founding Fathers may have wanted to allow people into the country freely, but they denied them the vote until they became citizens.
The generations of voters who founded America would be lynching libertarians.
They invariably nominate some hapless, nobody putz.