This has happened before, to the 90% of humanity involved in hunting and gathering whose jobs were displaced by Agriculture. It happened again when agriculture

This has happened before, to the 90% of humanity involved in hunting and gathering whose jobs were displaced by Agriculture. It happened again when agriculture and textile production became mechanized. It was accompanied by massive social upheaval, but it didn't lead to either a crapsack post-apocalyptic unemployscape nor a prefect utopian leisure world. Not from our point of view anyway; you'd have to pluck a 7000 or 300 year old man from his world into ours to find out what he makes of our progress.