...If a worker can't hold on to a low-skill job, how on Earth will (s)he qualify for jobs requiring creative and social intelligence, especially since low-skill jobs absorb huge numbers of non-native English speakers whose English-dependent social skills and forms of creativity are unlikely to make the language-biased cut?
True, there may be some, perhaps many, in low-skill jobs who will be "re-reallocated" to better jobs, after having previously been "reallocated" by the recession or some other misfortune to the ranks of unskilled workers. But after the battering they've experienced, they may be forgiven for neither holding their breath or hopes of getting a kick back upstairs.
Reinforcing the gloomier predictions are those predisposed to a "to be is to be used" view of technology, who will prophesy that in the long run automatable will be equivalent to automated and that chasing the dream of reallocation to a high-skill job will be like chasing the vapor trail of a fully automated jetliner, hoping to get a seat on it.
What stands in the way of complete replacement of human workers?