Well, we're not all on board with the entire party platform. For instance, I self-describe as being 99.95% pro-life; I'm not in the "let's legalize all drugs" camp; and I dragged myself - eventually - into believing the war in Iraq was a good thing. I could give a damn about gays, as long as they don't touch kids or unwilling adults. And as for interventionism, I don't think it's a good idea to thrust ourselves into EVERY damn squabble on the planet, but sometimes it's a necessary evil.
So, basically, you're going by a few bad examples. I take it there are none in your party?
Every cloth has its fringe. With some, though, it's all fringe and no cloth.
No, that's your party platform. YOU are a bad libertarian -- you have massive disagreements with their platform -- you're way too conservative for them on social issues and foreign policy. You're the exception, the liberaltarian is the rule.