There is no need for additional construction to meet housing demand. In the continental US there are something like 6 empty units for every homeless person in the country. In turn this means there is no pent up demand for building materials, so putting people to work in forestry, quarry, cement, steel, etc is also a non-starter. Global food surplus indicates there is no pressing need to put additional people to work in agriculture. I'm not certain that there is pent up demand for 3.5 million new nannies or therapists in the country, which is a relevant number as that's roughly how many OTR truckers that are on the cusp of losing their livelihoods to automation. There simply isn't enough work to go around.