Implying "superfluous email jobs" isn't a significant portion of the international job market. Most people that work in offices fit under this definition.

> Most people that work in offices fit under this definition.

Not at all. The majority of office jobs can't be automated by current generation LLMs, because the jobs themselves serve either creative or supervisory functions. Generative AI might be able to fill in creative functions one day, but the whole point of a supervisory role is to verify the status of inputs and outputs. A lot of these roles already have legal moats around them (e.g. you can't have an LLM sign financial statements), but even if we assume that regulations would change, the technical problem of creating supervisory "AI" hasn't been solved; even if it was, implementation won't be trivial.