I'm not buying this argument at all. What jobs are available to humans if AI can do it all? I foresee everyone paying Anthropic to do anything.
The only jobs left are manual jobs at small scale (think waiters, cleaners, nurses), but only because robots still aren't good enough.
LLMs have shown us that all the jobs we once thought were safe (creative, coding) are really not safe at all.
Even if it results in AI slop, you can clearly tell that people don't mind and don't realize.
If AI could do it all, why would there be any firm if AI could operate itself, too, then?