The answer to this lies with whoever can point billions of dollars at the legal system. There’s no way a judge is firing a kill shot at vibecoding when a significant fraction of the US economy is depending on it.

Even if AI generated code isn't copyrightable (and in my other comment I point out that this probably isn't the case) the US economy still doesn't depend on that ruling.

Even without being very imaginative, most non-open source code can fall under trade secrets.

Even without that both SaaS software and advertising supported software are still working business models.