You might have noticed I didn't call the cooperative "good or evil", just the ingame portrayed anarchies. Which all act in a way that the majority of humanity considers inhumane, even before the UN charta and by human dignity. Sure those principles were later ignored by dehumanizing the other side to get around it, be it racism or other ways to make them non-empathic.
Ultimately certain types of cooperatives can be terrible as well. Just as there can be a "beneficial" dictatorship depending on who dictates. Point is humans alone are never able to coexist peaceful when there is potential for strife. If all are poor, hungry and there is nothing to do to change it... sure, it will work. But once there is any way to attain more, someone will try to take it. It is how nature shaped it.
Anarchy, an unregulated Utopia, needs a true content but at the same time not lethargic and slothful people. So you need people that are industrious for industrious sake, sharing excess with others (or go back to a time where one person did EVERYTHING).
Just like you surely are not a content personality willing to sit in your corner of the world and do your thing. No you want to go out and declare war on all non-anarchies (anarchies which are at least in Elite mostly comprised of dangerous people that literally do and take what they want).
You are not truly an anarchist either. You are enforcing things outside of your own situation and imminent livelihood, effectively turning your proposed anarchy into a perversion of itself. Just like the egoistic democracy is defined as ochlocracy, not the good of the community is elected, but ones own. A corrupted anarchy that is infested by too much personal strife and egoism will deteriorate into the types we see ingame and ultimately just are inhuman versions of all other governments. And worse ultimately you enforce control by stripping people of the protection needed to make their own free decisions. Society always experienced the most freedoms when people were safe and secure, not under ideological force and constant threats to their life.
An anarchy a la Mad Max can be as much a prison colony as the official one. And you can pervert any other type into each other. Ultimately once egoism gets in, your "true" anarchy becomes a non-anarchy, a fake. Just like the USSR was fake communism. Same label, wrong content. You just replaced racial segregation with social segregation.
An anarchy of people living on separate homesteads trading some excess goods between each other can be a very friendly one, until someone wants more or lacks something. If it isn't shared by the others, they will try to take it to survive by force. Or maybe someone gets involved in a lovers quarrel. At some point something escalates. Unregulated it escalates more.
Social norms which later were ironed out and molded into official governments and its law - be it inspired and adapted by philosophy, religion or other origin - developed out of these problems. In some cases they got abused... actually in many ways they got abused. But just as some people said and adapted over the centuries: Democracy is the only decent solution to the problems we face in regards to government. Just be clear that I myself very well differentiate between a proper democracy (Swiss) and a republic (Germany) or some unfinished (and archaic) republic (USA).
There was anarchy for most times of human existence - aside of minor tribal laws - which was the least you ever saw. Last I checked progress and civilization came WITHOUT it, as someone stealing and murdering each other for lack or envy or... due to being stronger than the poor stupid city dwellers over there never advanced humanity. And it won't in Elite.