As opposed to?
What is your argument, human nature sucks, therefore we need to imagine that humans can completely ignore their natures?
My argument is that if your argument is "human nature sucks", that's as poor an argument in favor of government as you can come up with.
If human nature is as bad as some want to believe, then having no government at all would at least keep the badness of human nature localized, rather than giving it an attractant -a monopoly on the use of force- in order to foist its heinousness upon everyone.