It's two sides of the same coin.

Anarchism is the best solution for everyone but i think this is only feasible in a planet where everyone shares the same values, customs and norms. To allow mutual trust and respect not to pilfer and attack each other. The best example is in Dune with the Fremens. Each communities still have local quirks and there is slight cultural differences between the Northerners and Southerners but they all aid each other and identify as one people. The threat is from outside Arakkis. So, even anarchist values would have to extend universal wide for anarchism proper to work.