Most of these functions are also quite simple which means it takes less compute and costs less to replace them, as the technology advances this cost keeps going down because the requirements to perform these tasks do not change but the quality of the technology improves regardless.

We definitely do not need super intelligent AI to perform most of these tasks and what we do need becomes more and more affordable and accessible in shorter and shorter time spans.

A slow increase in the supply of lqbor, though possibly without the desired increase in demand for said labor.

One of the issues is the speed with which this is about to happen. It likely won't give economies time to properly adjust.

Usually when you have an increase in the labor force you can get increased GDP output and higher supply of goods and services. This puts downward pressure on prices, and demand for those goods and services generally increases, as they become more accessible. This extra demand inntrun generates further enttepeneurship as people seek to meet it. But if it happens too fast that cycle may substantially lag behind the increased output without creating more demand for labor.

This is starting to happen for mundane tasks, I work as a cyber security consultant for a large company and decent chunk of projects I've worked on have been "we want to program a bot to send/receive emails and files to update our databases on a daily refresh" or other simple automaton processes.

Fewer humans working OR expansion of the economy overall. If 99% of human work is replaced by AI, we can maintain the same number of jobs if GDP is multiplied by 100.

There is not a fixed amount of work to be done. There is an infinite universe of untouched mineral reserves and energy out there.

We still find jobs for bacteria. We pay them in food.