Earlier quoted context omitted.
> Employers might want to consider hiring more people in smaller shifts. Maybe an extra person and put everyone on 3-4 day shifts rather than 5-6. I thought that doing this to avoid providing healthcare was the problem. Many jobs that can't be filled are for part time hours at terrible pay with no benefits.
I'm not really understanding your point.
Businesses usually don't need 40 hours per person per week, especially for things like restaurants. They also do not want to pay for health coverage. So they offer part time jobs with 20 random hours per week.
To survive, you would need to cobble together two of those jobs and hope that you don't get sick. Or you can hold out/leave immediately as soon as full time work is available.