Minarchism–basically as small a government as we can get away with–is probably the most economically efficient possible way to organize society. A night watchman state providing courts of last resort and just enough military to keep someone worse from taking over.
The trouble (argues my inner anarchist) is that if we’ve got a government–an organization allowed to force/forbid behaviors–we’re already on the slippery slope to abuse of powers through political trading. Without an entrenched culture that takes minarchism seriously it’s only a matter of time before a) the state grows out of control and you’re no longer in a minarchist Utopia, or b) a populace unwilling to do their part allows violent gangs to fill the power vacuum.
Having a government at all is a risky proposition from the perspective of someone worried about the abuse of that power. Better not to risk it at all.
Anarchism relies on the right culture in a similar way. This is clear to critics of anarchism (basically it’s just the minarchists who are willing to take anarchists seriously at all) and is the crux of an important argument against anarchism. Without the right culture, what’s to stop people from just creating some new government? Nothing at all.
In fact, we face the same problem in the military-industrial-nanny-state complex of our imperfect real world. For any government–or lack of government–to work, the ideological framework of the people living in that society has to line up properly. To the extent people are ignorant, distracted, short-sighted, biased, or mean-spirited, we get governance that reflects those flaws.
If we want to live in a better world, we can argue all day about what sort of government we do or don’t want. But ultimately we have to work on improving the culture, because the median voter is still in charge.