Libertarianism is completely incapable of being practical. Libertarianism idealizes the right to property, but the government in libertarian political thought lacks the tools neccessary to secure that right.
I like the "idea" that people have of libertarianism, but that is not what libertarianism is, and this idea is not what Hayek and Milton Friedman had in mind when they outlined their own libertarian political theory --which by the way, was incoherent. Hayek's "worst fear" was right when people it to the test --way to much government intervention, full control over the economy led to the sh**tter, but they also prove during these tests (I think the economist who tested these theories was Poliyani but I'm probably spelling that wrong) that significant government intervention could help the economy.
Libertarianism:
1. a person who advocates liberty, esp. with regard to thought or conduct.
2. a person who maintains the doctrine of free will.
What you said is a narrow view of what libertarianism is. You say that in libertarian thought, government lacks the tools to ensure oh-so-idealized property ownership. That is not the case. Most libertarians believe that there needs to be government - just not a government that demands part of your paycheck and tells you what you can and cannot do in your own home.
