Being a woman doesn't give the right to ignore her finacial responsibility to her family
And being a man doesn't give her DH to ignore the domestic and child rearing aspects of being an adult, which it sounds like what her DH is mostly concerned about.
If the OP starts to work outside the home, is he worried that he might have to sometimes take time off work if the DCs are sick, take them for medical appointments, or to wait in for a plumber to come, or think about any of all manner of both small and large tasks that are simply not on his radar currently.
As others have said, the OP is potentially in a vulnerable position if they divorce, or if the DH dies, including in relation to pension rights.
Unless perhaps they have sufficient assets, life insurance etc, that if something went wrong, she could live comfortably on what she would receive. Not working and building up a pension can lead to poverty down the line. That is what I would be concerned about in the OPs position.
What if, once the DCs have left home, they separate. She could find herself in her 50s, with no recent work experience, no pension to speak of and unless the assets, including pension, are substantial and recognise her contribution to the marriage by sacrifcing her career in favour of facilitating all domestic matters, in accordance with her DHs wishes, she's potentially looking at having to work until she dies, or face a penniless old age.