Maybe it hasn't yet removed a net number of jobs, but it's definitely removed jobs at the skill level that's being automated. You upgrade your weaving business

Maybe it hasn't yet removed a net number of jobs, but it's definitely removed jobs at the skill level that's being automated. You upgrade your weaving business from manual looms to automatic looms, maybe you create more jobs for automatic loom engineers but you certainly also remove jobs for weavers. Maybe the additional productivity means that society as a whole now has more jobs but ultimately none of those jobs are going to be easier to do than weaving. Also, looms are a deceptive example because weaving is still skilled labour. Chances are if you can learn to weave good quality cloth you'll be capable of retraining into another skilled trade. The same can't be said for "unskilled" labour, your 50-year-old factory line workers displaced by automation aren't going to be re-training as graphic designers and web devs. Now apply that not to a specialized machine that screws lids on water bottles really fast, but to a machine that can do any desk job a moderately competent white collar worker can do, and you'll see we have a problem.