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.
Been happening since the machine replaced the assembly worker at Ford Motor Company.
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.