Apologies, I'm with you. I was speaking to the hypothetical, not trying to suggest it is inevitable. I think it is uncertain how this plays out, but I am an optimist and I think it ends up a net positive.
It is very plausible that LLMs never get to 100% replacement for knowledge workers and the winners will the people who use both, leaving behind the people who thought all they needed to do was cut costs by doing existing workloads without humans. It remains to be seen if the constraint on quantity of knowledge work was the people or the work.