I've never seen the men have problems with multi-tasking round the office.
Men are made of different stuff? Well, yes, IME men are slightly more confident at taking unilateral decisions in general, and women are better at empathising in general (not that you'd think it, looking at threads like this). I don't see how any of this determines what roles OUGHT to be taken.
I look at Norway and I don't see the economy collapsing as a result of companies being forced by law to have women on the board.
I look at Sweden and find them to be a pretty nice bunch of people, seemingly suffering no ill-effects whatsoever from growing up in families where both parents work as standard and virtually all children attend nursery from the age of 9 months and where maternity leave is shared between husband and wife in whatever mix they want (which surprise, surprise, results in Sweden having one of the smallest gaps in genderpay in the whole of the western world)
I look at my parents who were shoved in nurseries/day care from the moment they were born because the entire nation had to go out to work during the second world war, and funny enough they seem pretty cool folk too.
I've no problem with people who do want to stay at home with their babies, but I do see a problem with people then doing so and turning round saying there's no point in having children if you don't intend to do the same, or - as has been suggested on here - the very act is detrimental to our kids. Not at all. Shit childcare is detrimental and so are biggotted opinions. Caring parenting - in whatever format it comes in - isn't. And I personally agree 100% with Xenias view that a careerist mum is a pretty good role model for any daughter. I also believe that more blokes in teaching/childcare would likewise be a bloody good idea too.