People don't want "jobs", they want "income". It is individuals that will need to own these future assets, like 3D printers to insure they have income.
In response to: "Otherwise we would do well to imagine and plan for a near-term future in which all manufacturing and most construction around the world is replaced by 3D printers. Our kids and grandkids may be reduced to futures in direct competition with a global employment pool of poorly compensated printer designers, printer operators, and printer repairmen, where lowest cost energy as a factor in production reigns supreme"
In response to: "Otherwise we would do well to imagine and plan for a near-term future in which all manufacturing and most construction around the world is replaced by 3D printers. Our kids and grandkids may be reduced to futures in direct competition with a global employment pool of poorly compensated printer designers, printer operators, and printer repairmen, where lowest cost energy as a factor in production reigns supreme"