1) We should do whatever is possible to enhance personal liberty and freedom, as set forth by the Founders of our nation. This implies a parallel increase in the responsibility taken on by individuals voluntarily to live their lives in a way which is consistent with having more personal freedom.
2) Where at all possible, the coercive use of force should be avoided. This inherently requires a reduction in the size of the government, since most taxation is coercive in nature, and is really just the legal taking of someone else's property - backed up by force.
3) Private property, free markets, and voluntary exchange among individuals are key aspects of personal freedom. One of the few legitimate roles of government, in the eyes of libertarians, are laws intended to protect property, markets and the freedom of individuals. This leads to many misunderstandings about libertarian thinking.
Individual libertarians are often against particular actions, but think that society would be better served by a government which did not involve itself in regulating every aspect of life. Thus libertarians, for example, may advocate that government have no role in determining who can marry, except in situations where someone's rights and freedom, (such as a child), must be protected. Instead, for adults, the decision would be left to churches and the individuals involved. In such a situation, the personal moral beliefs of everyone, regardless of their point of view, are shielded from the coercive power of the state.
The ideas in your post frightens at least three posters on this thread.
So if you get your way, marriage is over, it no longer exists, do you really see marriage as meaningless to western Civilization, and America, and the American people?
How much power do you think that you need, to impose that on conservative America?
Well, the libertarian platform is pretty clear that they want homosexuals in the military, adopting kids, marrying and so on. And illegals are fine, too.
So if you disagree with any of the above, you should take it up with the official libertarian people.