From a FEE article by James Payne: Were the Capitol Rioters Really Libertarians? – Foundation for Economic Education (fee.org)
“To call an ardent, violent Trump supporter a “libertarian” departs substantially from the traditional meaning of the term.
The confusion stems from two very different conceptions of what it means to be “against government.” In the typical partisan battle, the agitators are against the particular people in charge of the current government: they are challenging King George, Tsar Nicolas II, Nancy Pelosi. They do not question the idea of government itself. They believe that when controlled by people with good intentions—namely themselves—the government solves problems and improves the human condition. Once they displace the incumbents, the dissenters will set up their own government, giving it large, and growing, responsibilities.
The other conception of being “against government” is the position that government itself is not a moral, rational, and responsible problem-solving agency, no matter who tries to run it. Therefore, we should—prudently and thoughtfully—move away from our dependence on it. This is the libertarian perspective.”