Something can be both an industry consortium and a DIY anarchist collective, like Linux; the Linux Foundation isn't Linux. It turns out that industrial companies don't appreciate being subject to monopoly rents any more than private individuals do! The GPL is undeniably very anarchist, and it serves as a kind of constitution that keeps the companies that participate in GPL projects from controlling them. Consider, for example, Oracle and LibreOffice, MariaDB, and Jenkins, or GitHub (now Microsoft) and Git.

The solution isn't to destroy capitalism or exclude industrial companies from participation. We tried that a century ago. It went badly, because, as it turns out, capitalism is better at limiting the damage done by ambitious psychopaths than the alternative systems are; if Beria had been born in Ohio maybe he would have ended up running a soap company or a division of GE instead of mass-murdering dissidents.

Similarly, the GPL (and, to a lesser extent, non-copyleft open-source licensing) reduces the damage selfish companies can do to software projects and the people and companies that depend on them.

We need to figure out how to do the same thing to drug companies and the FDA, because they are just killing far too many people and causing far too much needless suffering today.