hence the sense is of “extreme left-wing”.
The sense of “pro-property individualist” developed in the US in the 1940s, and was popularized in the 1950s. In the 1940s, Leonard Read began calling himself “libertarian” to contrast with “classical liberal”. In 1955, Dean Russell also promoted use of the word, writing: “Let those of us who love liberty trademark and reserve for our own use the good and honorable word ‘libertarian’.”
libertarian (plural libertarians)
- One who advocates liberty either generally or on a specific issue, e.g. "civil libertarian" (in favour of civil liberties).
- (chiefly US) A believer in a political doctrine that emphasizes individual liberty and a lack of governmental regulation and oversight both in matters of the economy ('free market') and in personal behavior where no one's rights are being violated or threatened. Also 'classical liberal', akin to 'anarcho-capitalist'.
- (chiefly Europe) An anarchist, typically with socialist implications.
- (philosophy) A believer in thinking beings' freedom to choose their own destiny, i.e. a believer in free will as opposed to those who believe the future is predetermined.
- (chiefly US) A member of a political party that emphasizes self-government in economic and personal issues.
- Having the beliefs of libertarians; having a relative tendency towards liberty.
2012 January 1, Steven Sloman, “The Battle Between Intuition and Deliberation”, American Scientist, volume 100, number 1, page 74:
- Libertarian paternalism is the view that, because the way options are presented to citizens affects what they choose, society should present options in a way that “nudges” our intuitive selves to make choices that are more consistent with what our more deliberative selves would have chosen if they were in control.
- He has libertarian views.
- A libertarian capitalist.
- (dated) Relating to liberty, or to the doctrine of free will, as opposed to the doctrine of necessity.