When I first realized that I was already a libertarian, and always had been, in about 1975, it was always quite clear that Liberals, Leftists, and fellow-travellers hated (or at least strongly disliked) libertarianism. For reasons that are clear studying the Nolan Chart https://en.wikipedia.org/wiki/Nolan_Chart and the World's Smallest Political Quiz. https://en.wikipedia.org/wiki/World%27s_Smallest_Political_Quiz

The Right opposed libertarianism because libertarians promoted both personal and economic freedom, while the Right seemed to like only the latter.

The Left opposed libertarianism because libertarians promoted both personal and economic freedom, while the Left seemed to like only the former.

That made 'sense', so to speak. Not that the liberals and conservatives actually made sense.

it is actually more fundamental!

consider that both Right and Left promote the idea of an infallible strong center, which conveys the laws upon mankind.

Libertarianism is by definition decentralized; delegating decisions to the edge.

given that power corrupts; and absolute centralized power corrupts absolutely, it is clear that both Right and Left are deceptions by Centralized Power to maintain itself.

the political question at core is this:

centralization? (and abuse of power)

decentralization (and individual responsibility)

the absurdity of humanity is that our cognitive bias sees only the direct cost of personal responsibility, yet ignores the global cost of centralized abuses.