> No previous tech shifts are comparable.

That's why the tall bank buildings that dot ~every small town (and plenty of big ones) in the US are full of bankers tending to paper ledgers, and with a secretary in front of every office. We still get milk delivered every day, as well as a block of river ice from last winter every 2 or 3 days (or more often if it's been particularly hot). We dig our ditches by hand, with hand-made shovels and pickaxes. The material for the clothes on our backs was woven on manual looms, from cotton that was harvested by hand, and carded by hand, and spun into thread by hand. We wear them in homes made with iron nails that were cut by hand, from ores that were mined by hand and smelted the only way we know how: With charcoal, in clay furnaces that were made with hands and that are stoked by hand.

Are you conveniently forgetting about all the tech shifts from the past that did replace labor permanently? The printing press, steam machine, electricity, electronic computers,... even something banal like an elevator used to need a skilled laborer to operate it and now no longer does.