Who are they trying to fool? Wholesale expropriation after stripping the license and authorship, while those in the open source community observe both of them very carefully.
Give credit where credit is due, including paying the creators when the licensing is violated.
Context is important here. Reda was elected to the European Parliament as a member of the German Pirate Party, so his position here isn't "big businesses are entitled to your code", and more "this sort of wholesale expropriation is a consequence of our posture towards copyright in general".
While I agree with you on principle, current laws do not reflect the copyright status intended by copyleft works. I'm not even sure if copyleft can be enforced against AI plagiarism under current laws.
That's a great point about stripping authorship. It would be nice if there was some sort of blockchain linking every bit of knowledge to its source. Some people at least would like getting attribution--I know I would. Instead we get a planet-sized meat grinder producing the perfect burger material. Just make sure to add enough spices to make it edible, i.e. not to offend anyone.
Give credit where credit is due, including paying the creators when the licensing is violated.