We do not seek to create or install or mandate a perfect system. It’s likely that no such system is attainable.
The true ideal of anarchism, indeed of any libertarian philosophy, is the toleration of freedom. The goal is (or ought to be) to permit as many freely competing systems as possible, in order that through competition, they may converge towards perfection.
With that in mind, the eradication or delegitimization of the territorial monopoly is of paramount importance.