Human calculators were doing repetitive math, some at a high level, but the majority were literally doing a large amount of basic math. The ones who were doing the high level stuff didn't lose their jobs, they benefitted from the automation, like with manufacturing automation and computer algorithms that have structured and repetitive outputs.

AI is being shoved into positions where some level of flexibility in clarifying context and decision making is necessary. It is currently being used to impersonate therapists, trample creative jobs by scraping copywrited works, and forcing itself into everything it can so it can scrape more and more data. It isn't comparable at all.