Umm... wouldn't society just kind of collapse? Not saying that men are in any way more important then women but if 50% of the population disappeared wouldn't everyone be rather more involved in panicing and wondering where there lost loved ones were?

Unless of course they mean the mythical planet of the women where men never existed and women reproduced by budding or something. In which case they would have a nice stable society that will have evolved differently due to the different pressure that this alternate reproductive system entailed.

I could see it being spun as sexist drivel on either side really either, 'Ooo look men are vitally important without us you poor ladies wouldn't have any power to run your hair dryers' or 'Look chaps you really are redundant now the world wouldn't even notice if you disappeared, maybe we would keep a few of you in reserves.'

Sigh.