But try to write your own story of a lion cub chased away by his uncle and living in a jungle until his childhood friend finds him and convinces him to reclaim his kingdom, and you'll quickly hear from Disney's lawyers how non-derivative it really is.
OSS devs aren't worried about Hamlet reinterpretations. They're worried about legally-distinct-but-functionally-identical software clones. Unlike Disney, they don't have millions in their pockets to fight the legal battle. You know who does have millions? The people they'd be fighting against, who are going to use every single of your arguments to claim their AI-generated reimplementation of Kefir is not bound by GPL (or even by BSD 3-clause in case of runtime). No share-alike, no attribution, no nothing. If they are right, then the OSS social contract is dead. Even if they're not right, but behave as if they're right because they have lawyers and OSS devs don't - the social contract is just as dead.