@Linkat,
First, I'm sorry about your dad's illness.
In terms of the rest of it... I know several families who are dealing with the husband/ father's lack of a job. Most of them are/were single-earner families, so when he lost his job they no longer had an income, so that's a different situation.
But there is a pride element that I think is probably in common amongst all of them. For better or worse, in American society today, men with families (especially with young children) feel an enormous amount of pressure to work. And often feel really bad/ guilty if they're unable to find work.
This is one reason my best friend is moving -- her husband was able to find jobs locally, but all were menial, low-paying, commission-type stuff while he is used to being a pretty high-level manager. He found a job as a high-level manager out of state, and they're moving.
I think -- big generalization here -- that in general, women (especially moms) are more tied to their local social networks than men are. That's probably more true when the women are stay-at-home moms and the men work.
Anyway, do your parents still watch your kids (how is that whole thing going, if so?). My point there is that the free childcare (whether from your husband who is now not working or your parents) probably offsets a fair amount of the difference in cost of living.