"For those who are unemployed and living off their husband’s income - would you have married them had they not earned enough to keep you?"
What a nonsense question! I met DH at uni. He had a few years in the military. Then went into banking. Then started his own company in his 30s, which he sold in his mid 40s. Of course I would have married him, even if he had stayed in the marines and been posted god knows where.
As for you comment that SAHM / SAHW are like children living off their father, this just demonstrates that you have no idea, frankly.
You are aware that in the vast majority of marriages, one person will earn more than the other? This tends to be the man, after children come along. If, like most couples, you think of all money as family money, then the higher earner is subsidising the other anyway, to a greater or lesser extent.
If I was working now, any money I earned would be negligible within the context of our overall financial situation. So my time is more valued at home. I have more energy for the kids and everything else.
Perhaps you're one of those people who maintains separate finances to your husband, all in the name of "independence." I find it staggering that couples can commit to having children together, but can't bring themselves to share their finances. But each to their own.