Actually, we DO live in a libertarian society. People who rule other people through deception are using their freedom to do it. People who do not fight off those who deceive them are using their freedom to live that way... or to die because of it.
Consider being a hostage in a hostage situation. Your captor points a gun at your head and says, "Do this immoral sex act, or I will kill you." Now it is your turn to select your government. Is your government going to be your captor? Or is it going to be your morals? You are free to decide. If you accept your captor as your government, your choice. Pure libertarianism... at least on your part.

Interesting thoughts. I guess that when most people talk about a libertarian society, they imagine one in which people have less restrictions on their freedom. It's probably just a semantics issue. It depends what your connotation of libertarianism. If it really just means that anybody can choose to do whatever they want then that would be true of just about anybody. If you live in North Korea, for example, you are technically free to choose to do anything you want. You just probably won't like the consequences, if you do what you want. I suppose you could say that we have a libertarian society where many people have taken it upon themselves to think up punishments for any behavior that they deem inappropriate.