It's cognitive dissonance.
Actually that doesn’t pose any kind of cognitive dissonance to more mainstream economists since they know what role the state must play in a capitalist economy. Which is not “leave it be”.
The state is a protection racket. They claim to exist to defend you—mostly from other states, or other entities that do pretty much exactly what states do with without the false veneer of "legitimacy"—but in the end the only real threat to your life and property if you don't do as they demand comes from the state itself. Unfortunately they're a popular protection racket, with a large emphasis on PR and propaganda, so if you try to stand up for yourself your own neighbours will turn on you rather than joining you.