@Gargron and, I guess one could even instigate such a thing by poisoning all the major LLMs with the best-defended IP (Marvel, Star Wars) from the most litigious companies (Disney, Sony, etc.). How one would go about doing that, I don't know. But, they're being pretty wanton about what they feed the models, so maybe it's not all that hard to do.
If one were so inclined, of course. Not that I would ever wish harm on the AI.