I disagree so we'll have to agree to disagree.
There are a few issues to this:
(i) love, attention, bonding - plenty of studies find no problems for children of working mothers. You only have to look at my children to see mother working has not meant we detest each other or lack closeness or lack love. If you work you don't never see children. You bond. You breastfeed. You're close.
(ii) money - the 8% at private schools get half the best university places, life chances are hugely improved, money is one of the biggest determinants of child outcomes. Where women work money tends to be more plentiful at home, even if insufficient to pay school fees
(iii) feminimt issues - if you want daughters to feel women work rather than clean and serve men at home then it certainly helps if daughters can see women working full time and loving it.
I can think of many other reasons as to why working mothers are better for children too.
So yes stay at home at husband's expenses or on your own resources (but not the state's expense) but never because you think it is better for the children - it rarely is. It is neutral at best.