Libertarianism is a modernist fad spawned by the French Enlightenment around 1750.
Actually, its root lies with William Belsham, a British political writer and historian who was of the British Whigs and wrote in support of the American War of Independence. No French writer or thinker emerged along Belsham's line, never mind coining the phrase "libertarianism," until 1857. In the United States, H.L. Mencken described himself as a libertarian without thinking of any kind of political movement. In 1955, Dean Russell wrote thus:
Many of us call ourselves "liberals." And it is true that the word "liberal" once described persons who respected the individual and feared the use of mass compulsions. But the leftists have now corrupted that once-proud term to identify themselves and their program of more government ownership of property and more controls over persons. As a result, those of us who believe in freedom must explain that when we call ourselves liberals, we mean liberals in the uncorrupted classical sense. At best, this is awkward and subject to misunderstanding. Here is a suggestion: Let those of us who love liberty trade-mark and reserve for our own use the good and honorable word "libertarian."It's buzz word was Liberte' exalting freedom above all virtues, an absurdity.
Libertarianism, lower-case "l," does
not reject the virtues you describe. It merely rejects the precept that the State is competent to be their source and enforcer or that a propely-construed government would think itself competent or constitutionally sanctioned to try. The argument on
behalf of a truly free society upholding and nurturing such virtues have probably received few more accessibly intelligent enunciations than from:
a) The late Rev. Edmund A. Opitz, theologian, longtime staffer at the Foundation for Economic Education, co-founder of The Remnant (a fellowship of ministers from the conservative and libertarian camps), and apostle of freedom whose signature works were (and remain)
Religion and Capitalism: Allies, Not Enemies and
Religion: Foundation of the Free Society and, I say proudly, my friend for a number of years, until he retired and we sadly lost touch; and,
b) Frank Meyer, the early
National Review senior editor, in two books, his anthology
The Conservative Affirmation and his single book
In Defense of Freedom. (So far as I know,
In Defense of Freedom has never fallen long out of print, while
The Conservative Affirmation is one of those titles for which you have to prowl the used bookstores or online repositories for finding orphan books.)