You're confusing 3 things....
- Anarchism
- Small "l" libertarianism
- Capital "L" as used in the Libertarian Party <--- The subject of the OP
The above descend in decreasing extremism.
The Party has antipathy towards & distrust of government, which I like.
But it also is all about having a government, with police powers, courts,
military, & social services. The difference with us is how those are used.
Well, there's no way to know how they would be used until they get the opportunity (and political power) to actually use them. I think "distrust of government" is somewhat of a misnomer. What it actually entails is distrust of people. Our Founders didn't want any one individual or faction to have too much power, since there was a natural human propensity towards abusing power. ("Power corrupts.")
What you should be objecting to isn't our forgetting of something we've not forgotten.
Instead you should be against our ending foreign aggression, reducing taxes, reducing
the size of government, curbing the nanny state, boosting civil liberties, & boosting
economic liberty. Those are all things involve minarchy, & are worthy of opposition if
one is a Dem or a Pub.
The only trouble is that people are still people, and if government is minimized, there's nothing to check the enormous power of the private sector, who have been known to become abusive tyrants in their own private kingdoms.
At least government, on paper, has a duty and responsibility to serve the interests of the people, while private sector entities have no such responsibility or duty. (Nationalism can be a balancing force in that respect, since it carries the assumption that people of the same ethnicity, culture, and blood ties will have a natural propensity to care and look after their own people, but that's not really possible in America today, nor can it be implemented on a global scale. There would be too much fighting and dissension - which is what we've seen over the past century or so.)