Libertarians NEVER FAIL to eventually compare conservatives to the Taliban or something similar.
Is is society's purpose to promote good morals.
There is a difference between promotion and protection.
The Founding Father's realized this:
We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness.--That to secure these rights, Governments are instituted among Men,
Then the Founding Fathers secured it with this:
We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States of America.
Like many libertarians you seem to be heading in the direction of anarchy with no government at all. Libertarians have this Utopian mindset that if there were no government everything would be perfect, it's actually quite similar to what Marx believed.
Ha - yes, they are self-evident! They are beyond Government, are written on the hearts of every man, and given to us by God. Unfortunately, we now have activist, debt-ridden, massive progressive Government that has taken on itself the right to decide what "rights" should be, including abortion, gay marriage etc... And because it is so huge and can print money at will - it will force these absurd views on society.