Agree this thread is depressing.
Women are usually the default child carer. IME Men expect this regardless of what they say and society does too.
The area I live in is not a high flier kind of place.
IME also a lot of the men who at work say they wish their wives would work/work more hours are not interested at all in putting any effort in to helping this be a viable option.
You talk for a bit about the practicalities and they want nothing to do with them or you know their wives and that they really cannot hold down a regular set hours job because the husband is always in a meeting/runnning late/having to do extra work etc.
I agree that men benefit at work from the appearances of having a "stable" home life (kids and a wife) and therefore progress easier than their female counterparts. In order to do this the women in my area do sacrifice their careers to one extent or another.
If they didn't benefit from having the SAHW & kids and they didn't want children themselves surely they would marry women who also didn't want children or not marry/have kids at all and just enjoy a childfree life and have less to complain about at work right?
I think it's clear they benefit from a SAHM in terms of house related stuff being mainly taken care of (and expected to be done as such), so they can spend more time at work or relaxing after a long hard day at work because the meals are cooked, dishes done, house tidy, bills paid, the plumber called about the leaky pipe, kids taken care of etc.
I think a lot of men who talk about wanting a working wife are frankly talking out of their bums. When you get right down to it they really want a 50's housewife which is bloody depressing.
I'm always really suspicious when a man high up at work is complaining about his SAHW and wonder (and in one case know very well sadly) what crap the poor women is enduring at home while being run down to all that will listen about how that poor man has it really hard! 
It is actually a sacrifice to the women. Career progression practically stopped, earning potential significantly reduced, less pension etc contributions made, less for their sense of self (I know so many mums that have had the "who am I but a mum now" mini-crisis) and at the end of the day after making the sacrifices - previously discussed and agreed on or just lumped on them by shitty H's - how many women do you see on here or know in real life who's H's have been generally crappy or thankless and unthinking about the W's side of things or end up cheating/leaving?
I do know women sometimes are SAHM's because they don't want to work and their H is happy with this, I think it's risky in terms of what will happen should they ever separate but think it's lovely that they get to spend so much time with their kids.
Yes women are responsible for what they accept but in a lot of cases there have been discussions on what will happen after children but then they don't happen the way it was discussed. Sometimes this is because the man makes it difficult either because he always really wanted a SAHW or because he is an arsehole or abusive. No one can predict whether their H will stick to the agreement when it comes down to it.