In the 1950s, there were hundreds of thousands of telephone switchboard operators. Today, they're all gone. There used to be well over a million professional typists too, but word processing largely killed those jobs as well.

That is true, but this time this is at a global scale at affects general work and it will accelerate faster.

What happens to former human workers when global unemployment rises faster with a disappearing buying power and consumption from humans as their income vanishes and their savings are all spent on food and rent?