I agree with the premise of your position, but it is a bit of an exaggeration to say that everyone would be responsible for every task in society. Even in pre-industrial times people specialized. Towns had tanners, butchers, blacksmiths, farmers, carpenters, etc.

I think what the contrast between this idea and the parent demonstrates the need for balance between the two extremes. We need to use the best parts of industrialization for efficiency and prosperity, but also lower consumption where it isn't necessary. Don't sew your own clothes, but repair them when they tear.