You need to get your small l’s and big L’s straight.
I see; that would be like me saying "I'm a republican, but I don't have anything to do with the Republican Party". As I've mentioned many times in my debates with libertarians (note the small "l"), "While you might not totally agree with your parties platform, your political identity is based on the party you agree with most when it comes to their platform."
Besides that, libertarians hijacked the word from Christianity to begin with. Here's an excellent article by Bojidar Marinov entitled "Can I be a libertarian without Christ". Definitely worth the read. http://www.americanvision.org/article/can-i-be-a-libertarian-without-christ/