Talk about a complete crook of shit.
I’m a woman with great six-figure job and haven’t needed a stayhome spouse to facilitate it. Few do.
SAHM are a huge burden, requiring the breadwinner to provide shelter, electricity, water, heat, food, council tax, retirement savings, clothing, sundries, personal care, insurances, household furnishings and maintenance, technology and devices, subscriptions, leisure spending, gifts/religious contributions, transportation/auto/fuel, travel etc.
That is an enormous amount of benefit to receive in return for low-skill housekeeping and childcare. It’s greedy and lazy to fight to extend it past toddler years.
Then add in what he pays for the kids, including extracurriculars, and hopefully towards some savings, and the burden is immense. Only a slug would expect one person to carry that indefinitely.
And maybe he wants more savings and security and flexibility than “a bit left over each month.”