This is an entirely illogical "documentary."
Firstly if I think it is ok if people take my car without permission it doesn't mean I get to decide everyone else has to accept their car being stolen.
For every Clyde Stubblefield that thinks no copyright is ok there are hundreds of creative persons and artists who say no, since that is their only source of income for their work. Incidentally had Stubblefield gotten proper royalties from the hip hop artists who took his work he might not have died destitute.
Beyond that this documentary is full of misportrayals of the law and the case law. Even the writer ridiculously claimed his trademarking of ":freedom of expression showed problems in US IPO law, when in fact his allowed trademark over that was preliminarily granted, extremely narrow and thrown out. So he didn't prove you can trademarked anything. He showed actually the law worked since he was unable to sue anyone. Essentially all McLeod proved was he doesn't really know a thing about IP law.