Perhaps jobs are not the end. Perhaps prosperity is the end, and jobs are occasionally the means to it.
If we lost half of all jobs, but a family could be supported comfortably by a single-breadwinner, would you consider that a net loss, or a net gain?
Or, alternatively, if we had 100% employment, yet all lived in poverty, would that be a better world?
Consider that the Soviet Union had 100% employment. Is that the high water mark for economic success? Why not? Inefficiency is one answer to it. Another was 'Where did the wealth surplus go?' There are others.