https://nypost.com/2023/07/13/dukaan-ceo-fires-90-of-support-staff-in-favor-of-ai-chatbot/
The CEO of an India-based e-commerce company said it was “absolutely” necessary to fire 90% of his customer support team because an artificial intelligence-backed chatbot outperformed them — slashing response times down to minutes that previously that had stretched beyond two hours.
Since long before Henry Ford came along -- machines that replaced muscle power (steam-power sledgehammers, cotton gin machines) or human skill (in the fabric or textile industry for instance).
A good overview: https://en.wikipedia.org/wiki/Industrial_Revolution
Mechanization brought higher productivity per worker, and "Higher productivity" = fewer workers needed to do the same work.
Don't forget the printing press replacing scribes.
And word processing replacing the typing pool.