Unemployment is figured from benefits. A person who has timed out, self employed, and underemployed are not figured in. The black market cash is harder to figure.
The available jobs have an array of caveats: physical health, training, skills, distances to travel, part time.
We could go back to the ( never existed) farmer, mill operator, blacksmith, baker, all living above the shops.
There is little thought of modern innovations. Example: bessemer made better steel, so better rail to carry goods, making luxury items for the masses. That also brought backbreaking labor, pollution, coal mines, pit mines, migrant slums.
In the new world perfect people will never break that pre armageddon charger full of fruit so we will not need a glass factory or clay mine😊