I was once sympathetic to libertarianism, but its stance toward environmentalism put paid to that - there, as with quite a few other dogmas, they embrace the silent magic of externalities, rendering damage caused by one’s activities to be Somebody Else’s Problem™, let alone conservation or green energy, preferring the mythical Hand of the Free Market™.

Absolutely, the Dems are, as a party, endlessly milquetoast in policy and approach, barely liberal, let alone progressive, but versus actual Nazis and white supremacists? No contest.

I do know some libertarians whose idea of the minimal necessary state is 1) national defense, 2) pollution taxes and other fixup of negative externalities.

But in general, it seems clear that most libertarianism comes from a certain attitude -- being more correct than other people -- more than philosophical principles. There are lots of ways to feel more correct, and libertarians can slip from one to the other more smoothly than might seem logical.