FTFY.
As you state further in, it's not women's exclusive job to be child-rearing nor is it not 'work' to maintain and run a house.
Today a single mom with full time job can still run a (not too big) house.
So to be fullfilling there has to be more than just keeping the house clean and people fed, which is probably why so many upper-upper-middle class women have a part-time job running some kind of fashion store.
Until COVID hits and children have to be taught virtually from home.
There are no easy and cheap answers here, but a series of trade offs. I think the original question is “where is the conversation of the trade off?” I don’t think it’s settled that the ideal social structure involves a dual income family. And I think very few people envy the workload required of single mothers, regardless of technical advances that make cleaning a home easier.
Caregiving goes well beyond making sure the kids have clean underwear.