That's a big "given"This is less absurd than you make it seem breh. If you remove capital from factories they don't automatically stop functioning. A workers co-operative could function in some sectors impervious to mass automation given that the good being manufactured is profitable enough.
What sector has factories but is impervious to automation
Clinging to that old factory/worker model is a waste of time.... we have to look forward
U mite as well say 'no more cars.... we have to set up protectionist laws to keep people in horse drawn carriages'