The people I am talking about Maizie are not newly qualified graduates but professionals with 5, 10, 20 years experience behind them, capable, for example of undertaking complicated life saving surgery, taking responsibility for installing wind farms, capable of heading departments in schools, taking on the installation of a major IT project.
Unemployment registers are remarkable free of them. DH is stilling working at 76 because he is an expert in the safe movement of large items at sea, currently working almost non-stop in the wind farm industry because they currently cannot find enough people with the right experience for the work.
I am sure (not) that there are thousands of such experts working 1 hour a week who would leap at all the new vacancies that would be available if everyone worked shorter hours.
Changes like the mininimum wage were not a problem, because it only affected a proportion of the population and for most the effective wage rise was only a couple of £s an hour. This new plan is talking about a 20%, full on salary rise for everybody, plus a 20% rise in the size of the workforce in a competitive global economy in which British goods will no longer be competitive in international markets.