I’ll bite: No one is doing the work. It costs the business too much to sell fast food at what the traffic will bear, pay the employees, maintain the operation, and turn a profit.
The woman was an assistant manager. She managed other employees and probably did some work serving customers herself. She can add that position and related skills to her resume and use it to find a better job or the same job in the service industry or another managing other employees. ...Or begin the climb again in another job.
If she was already doing better than the minimum, she can’t run the operation by herself as it costs too much to employ staff to work it (and for her to manage) in lieu of the franchise owner.
Do I have that right? What am I missing in your question?
You are only addressing half the equation, the supply side. There was a demand for the product they sold which is no longer available, so where does that demand now get fulfilled?
You’re missing that he’s a longtime proponent of minimum wage increases and believes the negative effects are misstated.