Earlier quoted context omitted.
GPL is a response to the copyright law, which was created for the big corporations to extract rent from ordinary people. It's copyright law which should go away.
GPL is much more than that. It is distributing the means of production to the tech workers. rms is the Marx of the 20th Century. GPL is freedom from corporate oppression.
Due to the nature of software, especially in the 80s, it existed in both text and binary form, which made it easy to perverse the nature of selling software from selling code to selling binaries, and big companies went even further in their collusion with the government socialists by making even re-selling even your own binaries illegal.
GPL is just trying to fight this madness with its own weapon. The GPL is an attempt to go back to capitalism of small business owners and individual service providers.