Probably 99% of self described libertarians don't know anything about that, or actual libertarian rhetoric in general, they just want to smoke weed and not pay taxes for stuff that doesn't personally benefit them and they think that's what libertarianism is

FWIW,

rw:Murray Rothbard

Rothbard was one of the foremost proponents of the pseudo-psychology known as praxeology. Rothbard viewed property rights as paramount to freedom and so went even beyond von Mises, who was a minarchist, in advocating anarcho-capitalism. He was also known as a big critic of fractional reserve banking and the Federal Reserve. Because of his philosophy, he held many views that would be seen as progressive as well as ones that were misguided. For example, he voiced support for the civil rights movement,[note 1] but also defended the practice of child labor, "racialist science,"[2] and that "cops must be unleashed, and allowed to administer instant punishment."[3] Also, despite his initial vocal support for revolutionary black power politics, he later worked with Lew Rockwell, founder and then president of the Ludwig von Mises Institute, to run a campaign strategy to exploit racism in order to build a libertarian/paleoconservative coalition (dubbed Paleolibertarianism),[4] and praised the notorious work by Richard Herrnstein and Charles Murray, The Bell Curve.[5] He was known as the first anarcho-capitalist.

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rw:Benito Mussolini

Benito later followed his mother into school-teaching and became politically active as a democratic socialist. He was a very prominent member of the Italian Socialist Party in the years prior to World War I.[18] He edited several socialist papers and also wrote a satirical novel, The Cardinal's Mistress, which was poorly written and mostly served as a vehicle for numerous anti-clerical rants.[19][20]