If there were no law, people with guns would make laws and enforce them. Without the government, the people with the most guns are likely to be companies as they already have the manufacture sorted.
All the ideas of trying to bring about anarchistic statelike systems seem to neglect the issues that sometimes hierarchy is very useful and can also be extraordinarily deadly if used aggressively.
I'm making a very limited point. Corporations exist only because we, through the law, allow them to exist. Groups of people (with or without guns) are not corporations. Pablo Escobar ran a drug trafficking organization. No one calls that organization a "corporation."
We could, if we wanted to, and through the law, eliminate corporations. In that case, you could still have organization run as partnerships or other means. This does not require anarchy in order to achieve.
If there were pure anarchy, with no government, then we would de facto have no corporations. That because we wouldn't have property ownership, limited liability, contract enforcement, and the other aspects which make corporations "exist."
That's why I suggest that getting rid of "immortal amoral virtual [corporations]" can be done without anarchy.
If there were pure anarchy, I'd give it less than ten minutes before someone sets up a state. States are ideas, and are as hard to get rid of as anything from Pandoras box. You cannot truly ban things, you can only ever hope to make them temporarily unfashionable.
All the ideas of trying to bring about anarchistic statelike systems seem to neglect the issues that sometimes hierarchy is very useful and can also be extraordinarily deadly if used aggressively.