There are big chunks of people who are unemployed with two strikes against them, they are under-educated and they are single parents.
This double whammy kills you because if you aren't working you can't pay for day care, if you can't pay for day care then a big chunk of your time is taken up in providing day care (depending on the age of your children).
So if you pick out the 'edge' case where you have:
two work capable parents
both with college degrees
fewer than four children (all over the age of 5)
There is an "easy" answer, upgrade your skills and/or education, get a job. I know a couple in Texas who did exactly that, the husband, went to community college, transferred to the state university system, and they are now 3 years unemployed and 1 year away from being a newly minted EE with a paid summer internship under their belt. They have recruiters talking to them at school but on my and others advice they are going to finish the degree before actually taking anyone up on those offers.
I've talked with people for whom 'job hunting' wasn't an issue, until it was, and they only realized a year later that their previous experience really wasn't all that applicable to anything really.