You should have been around for the long, hundred+ pages I wrote refuting every salient aspect of what can be referred to as "Libertarianism". Just go browse my old posts.
Plus I'm writing a book (albeit slowly) that is going to refute and destroy every aspect of this cult-ideology. I hope to be able to finish it in a year and am starting officially end of August or first of September.

Point me in the general direction, otherwise I won't bother (or summarize as I have). I'd love to see how you use logic to explain it away, or is that not a necessary component to your refutation? I'd imagine the fact you consider your reasoning to have any meaning and be worthy of review it would have to be logical, in which case, I'd be interested in what axioms you start with to begin your arguments.
You see the problem isn't the fact that you can make any moral rules you want, the issue is one of enforcing them. At that point things get really dicey. They're great for those who sign on to be ruled in such a fashion, but makes it extraordinarily violent for those who just want to be left to their druthers. It's when opinion, ethics and morality crosses over into the physical world where you start to produce a plethora of consequences.