I suspect their indignation has more to do with the fact that the marginal cost of what they do to feed themselves (so that they can live another day to express

I suspect their indignation has more to do with the fact that the marginal cost of what they do to feed themselves (so that they can live another day to express themselves, of course) is now close to zero. If we had arrived at these art producing machines by some other means, I doubt that the artists would be pulling any punches, seeing as they suffer all the same.