Isn't the mothers/women argument that "mothers" as a group do not represent "all women" as a group? Or have I misread/missed something. I have no idea what thread you are all discussing so am a bit lost 
I agree with Penguins that it's important for girls to see men behaving in ways which contradict the "All men are X" and "Men don't Y" messages. But does it work for boys? I am of course doing my best to show DS that women aren't slaves who clean for men
but actually that pretty much depends on DH doing half/most of the cleaning, so it's actually more about something he is doing "as a man" which is against the expected male norm.
I suppose that he gets to see me have equal say in important decisions and have access to money and for DH to generally treat me and my opinions with equal importance and respect (although that last one is DH again, argh!) and stand up for myself if I don't agree with something. And I work, at least part time so he understands that women have important jobs in the "outside world" as well as being Mum at home.
Though, I think this is difficult for SAHMs and it's problematic in that it always seems to be the main example brought up about what kind of "role models" women should be for their children - career mums/FT working mums. Nothing wrong with that at all, of course, but it feels limited as being the main thing that women can "role model" for their children.