As to what you say here, I've already responded to that in my post #4. But I'll repeat myself. Libertarianism is not about rugged individualism (although many libertarians are). It is not about selfishness being a virtue (although Ayn Rand's disgusting creed has far too many followers among libertarianism).
The Founding Fathers understood that the most important organizing principle of society is liberty. It is why the entire Constitution was about defending people from encrouchments on their liberty.
Liberty is about treating men as men. It is about working together voluntarily instead of under coercion.
Are you really so insecure about the values of your community and family as to believe that they would not prosper if subjected to testing in the marketplace?