Some 20+ years ago, I was a Marxist. Then, some 15+ years ago, I became a libertarian. In terms of domestic political issues (e.g., welfare), it’s empirical weight was like a light-switch, and as a political philosophy it’s theoretical consistency was most attractive.
But libertarianism presumes the world is a marketplace of similarly rational agents. To borrow some Marxist terminology, libertarianism fetishizes idealized notions of inherent rationality (and, I would argue) innate benevolence.
Then, post 9/11, I realized the Constitution, if adumbrated along strictly libertarian principles, would be tantamount to a suicide pact.
Language, culture, and borders matter.
I then became a paleoconservative, or what is now labeled ‘Alt Right’.