I think the appropriation, privatization, and monetization of "all human output" by a single (corporate) entity is at least shameless, probably wrong, and maybe outright disgraceful.
But I think OpenAI (or another similar entity) will succeed via the Sackler defense - OpenAI has too many victims for litigation to be feasible for the courts, so the courts must preemptively decide not to bother with compensating these victims.
https://en.wikipedia.org/wiki/Sackler_family
The family has been largely successful at avoiding any personal liability in Purdue’s litigations. Many people feel the settlements of the Purdue lawsuits were too lenient. One of the key perceived aspects of the final settlements was that there was too many victims of the opioid epidemic for the courts to handle and attempt to make whole.