I don't think theres much of a tension or contradiction between libertarianism and authoritarianism because both believe power should be held by the person not the office, and bureaucracies such as institutions, laws, and office should be for display purposes only. Attempting to codify such things goes against natural order
But I think there IS a tension between libertarianism and fascism. Libertarianism and authoritarianism aim to depoliticize and de-energize, the public are just potatoes. While, fascists also believe power should be in the person not the office, its aims to energise and politicise the potatoes runs the risk of disrupting the natural order. Active participants can potentially band together, act unpredictably, or start to gain elements of power. I think the tension or contradiction is in whether the public should be activated or not, fascism isn’t necessarily as hierarchical as libertarianism or authoritarianism, with a potential danger of power flowing upstream as well as downstream
― anvil, Wednesday, 13 September 2023 08:14 (seven months ago) link