I wonder if it is as common for men to be so eager to put the boot in about other men as it is for women to do so about other women.
I can't imagine how we will ever achieve equality in the home, in employment and in public life in general if some women insist on describing mums who stay at home as lazy or mums who go out to work as neglectful and disapprove of the notion of having quotas for women because "it should be the best person for the job" - implying that, in general, women are in some way sub-standard.
I had thought that one of the outcomes of the massive leaps forward in technology would be that working hours would be much shorter, so that both men and women could work part time and so more equally share child care. I think I'm right in saying that average working hours have changed very little in 60 years or so.