I have to wonder how much of this is "would like a full time job but has a part time job paying over 26k." Because of mandatory benefits (such as health insurance) for full time workers, a lot of companies only hire part time workers, but often people are making a living wage from those jobs. I'm not sure if a bartender making $50k+ (including untaxed tips) working 32.5 hours a week should count as unemployed.

Or simply people who have 2 part-time jobs totally 40 hours.

A lot of smaller companies over-hire part-time labor to minimize cost of overtime, medical benefit support, and mandatory wage increases. In general, employee-at-will and dependent-contractor status is only popular in the USA, and often is outright illegal for good reason in most other countries.

Demand deficient labor is a stubborn macroeconomic problem, and when manufacturers hit artificial trade barriers a lot of folks simply get sent home off rotation... even though they technically are still employed. =3