The point being, it's ridiculous to generalise about 'SAHMs' - eg, they are all this, that or the other - because their circumstances vary widely.
You are just taking about the 2 SAHMs you know @SerenaCat93 . And you say a third of SAHM families are below the poverty line. Well what about the other two thirds?
Yes there are many women who can't afford to work because the cost of childcare is prohibitive. But there are also women who can't work because they have children with additional needs. And there are also millions of women who don't work because they are in high net worth families and frankly, the money they would make, even on a very good salary, is not worth the opportunity cost of putting your children in childcare.
You see a certain side of life with these 2 SAHMs you say you know. But if you were exposed to a different SAHM demographic you would have a different perspective. I don't know a single SAHM who isn't highly educated. These women know what they're doing.
As I said, I think I only knew one woman through all of my 3 kids / neighbours / friends etc that used a nursery.
Never mind a SAHP, it's very common to have a SAHM plus an au pair or nanny or other part-time help when there are multiple children. I did not do this, but I saw it all around me. I was the exception in that respect in that zi was a SAHM with no 'help.'
These women do not become SAHMs to do housework ffs. As if! They leave work because they know they have more to offer their child than a nursery setting. Put it this way, if money is no object. why would you put your child in a nursery with low paid staff, when you could be showing them the world yourself. You do realise, nurseries are not compulsory!
There is also a lot of what might be called 'tiger parenting' going on because entry to certain day schools in London is highly competitive. You will say that this is just London and a small demographic of people on a nationwide level etc etc and you wouldn't be wrong. I agree this type of family is not typical on a population level. But where you are looking specifically at the demographic of families who can afford to have a SAHM / SAHP, these families will make to a large proportion of them. It's no coincidence that families with SAHMs are concentrated in certain areas of high net worth families. These areas are densely populated.
If I talked on here about 'working women' as if they were all on minimum wage or low / medium earners, yes that would cover many women. But clearly not all working women are in this category. It's the same with SAHMs. Women are SAHMs at all extremes of the economic spectrum - for different lengths of time, different numbers of children, all sorts of factors. So when you refer to SAHMs as 'they' - who are you actually talking about? Which ones and where?