I'd be interested to know where you draw the line of code ownership. Arguably FOSS is the place where projects are most likely to become a Ship of Theseus.
From my perspective AI slop is pretty unusable as it comes out, but can be an approximate starting point. It seems generous to call an LLM a coauthor, I'd be more likely to have a long list of Stack Overflow commenters as coauthors first.
I wonder if your sentiment is common, because being a non American, it appears as a vocal counterbalance to the occasional intangible headlines. This would ironically explain the imbalance from my perspective