Well, there are two solutions:
Scenario 1: We all make war again. How it works, we can now see daily in the news. There are about 50 places in the world, where active war action is going on. Mostly with weapons made in the so called «First World» (North Americas and Europe, joined by Japan, Russia and China. If we can manage that about 2 billion of people can be active in fighting, we can also predict that the world population will be diminished inside 5 years by 1 billion. Logically in about 50 years the world will be outpopulated by 99%. For those, the question of jobs is then completely irrelevant.
Scenario 2: We get
Dr Guillotin's Machine back and apply it's benefit to more or less all turbo-globalisation-prophets and followers in Universities, Enterprise, Health industry and Banking, especially including ALL weapon producing bonus eating weapon producing bosses. We will also not forget the race of «Politician», male or female, on all levels. Then we have a slight chance of recovering to a human and social world, without all personal extreem greed.