No matter how hard the work conditions are, people don't usually accept its disappearance.
Automatization reducing work can actually be a good thing, as it is the reason why we can have vacations, retirement and long studies: because the society's need for work is lower than before.
They mostly stopped working in those fields because everyone hates farming and mining and quits the first chance they get.
Here's recent evidence from Canada, Japan and Spain showing automation caused employment increases:
https://pubsonline.informs.org/doi/10.1287/mnsc.2020.3812
https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3377705
https://econpapers.repec.org/paper/etidpaper/20051.htm