The only reason this happens is that capitalism ties survival to labour. Automation should be liberating us, and yet the structures of capitalism and “protestant work ethic” cause it to do the opposite :/. People would act this way because otherwise the greater efficiency acts as a detriment to their survival ability.
None of what you said is an argument against worker democracy, but an argument against the fundamental models of capitalism and “”“free”“” market ideology ^.^ (or more generally, any system and ideology which gatekeeps access to basic resources behind their perceived ability to provide “value” or perform labour).