That would be a perfectly reasonable thing to say. Article IV of the U.S. Constitution, for example, states that "The United States shall guarantee to every State in this Union a Republican Form of Government." Are you suggesting that they're referring to the political party that wouldn't exist for another 60 years or so?
The problem is my friend, is that the word “libertarian” has been grossly perverted.
“God [is] “the true sovereign and the true source of law.” “Western liberty began when the claim of the State to be man’s savior was denied. The State then, according to Scripture, was made the ministry of justice. But, wherever Christ ceases to be man’s Savior, there liberty perishes as the State again asserts its messianic claims. Man is in trouble, and history is the record of his attempt to find salvation. Man needs a savior, and the question is simply one of choice: Christ or the State? No man can choose one without denying the other, and all attempts at compromise are a delusion.”
http://www.theamericanview.com/index.php?id=963
Would you not agree that in the minds and through the actions of the majority of libertarians, that Christ and His Father’s laws play a very insignificant role (if any)?