There's no real need to worry about who should and shouldn't work: Everyone who can, should. If society incurs lower productivity from that, so be it. There are no dividends to society from increased productivity at the expense of utilization. Productivity must be able to stand on its own, to be worthy, not steal from full employment.
I do not see how you can change the meaning of what you said...
"There's no real need to worry about who should and shouldn't work: Everyone who can, should."
Seems like a simple statement that others have pointed out seems to be all inclusive.... you might have meant everybody who wants to work, should, but that is not what you said. I think there are many people on this board who CAN work, but choose not to.... that goes against your statement.
Also, I think that the times are a bit different than it was back in the 60s or 70s... globalization has changed the labor force... back in the old days the cost of communication to foreign countries meant that almost all the world was excluded from most jobs here.... heck, most jobs had to be local to the work. IOW, if you had an accounting or purchasing or sales or ... dept., you had to have almost all workers located in the same building... today, that is not the case.
Because the pool of potential employees for each job has increased by a LARGE factor, it is not a big surprise that wages have come down... I do not see this changing in the future...
Productivity is one of the biggest factors that make most workers here worth the middle class wages they are getting... productivity is not bad... it is the reason we have the standard of living we have.... without it we would be a third world country.... I for one think it is the best thing going for us....