"Having tracked the libertarian “movement” for much of my life, I believe it is now pretty much hollowed out, at least in terms of flow. One branch split off into Ron Paul-ism and less savory alt right directions, and another, more establishment branch remains out there in force but not really commanding new adherents. For one thing, it doesn’t seem that old-style libertarianism can solve or even very well address a number of major problems, most significantly climate change. For another, smart people are on the internet, and the internet seems to encourage synthetic and eclectic views, at least among the smart and curious. Unlike the mass culture of the 1970s, it does not tend to breed “capital L Libertarianism.” On top of all that, the out-migration from narrowly libertarian views has been severe, most of all from educated women.
There is also the word “classical liberal,” but what is “classical” supposed to mean that is not question-begging? The classical liberalism of its time focused on 19th century problems — appropriate for the 19th century of course — but from WWII onwards it has been a very different ballgame.
Along the way, I believe the smart classical liberals and libertarians have, as if guided by an invisible hand, evolved into a view that I dub with the entirely non-sticky name of State Capacity Libertarianism."