I'm unconvinced that hints at a "Great Depression" looming!
What is happening is that there are simply fewer families. Fewer men and women getting married. Far more unmarried men without work, and far more single mothers working.
Your scenario isn’t been seen at all, where mother works and father stays at home. Only about 5 percent of all married-two income families even have the wife making more, and even fewer of these have the arrangement you’ve cited, about 2 percent of the total married families.
It’s just not happening, and there are good reasons for this. We’re not going to see a return to the 50s because the marriage rate is about half the rate now. We’ll see a growth in single mothers, until most families are a mother with out a father raising the child alone and working.
Why are we seeing this? Because of the way government works. Government has made benefits for the single mom with a child total the equivalent of a single minimum wage full time worker.
The single mother doesn’t need a husband or a job. In fact, if the boyfriend lives with her, they will have 20k a year (more than many single men work), whereas if they were married, this would fall to 14k.
This is, of course, the arrangement that is growing faster than any other -where NO ONE works, you have boyfriend and the girl, and they live off government benefits.