In the words of one its authors:
"We have no government armed with power capable of contending with human passions unbridled by morality and religion. Avarice, ambition, revenge, or gallantry, would break the strongest cords of our Constitution as a whale goes through a net. Our Constitution was made only for a moral and religious people. It is wholly inadequate for the government of any other." -John Adams
See the problem?
No, it isn't.
Come on. One accomplishment.
Surely the limitations of Libertarianism aren't so crippling that it hasn't managed to accomplish anything?