It's illogical to think a distaster will occur and it will only wipe out the male population, unless you are suggesting some mad scientists will develop something which will go crazy and kill half the male population only.
It's more logical to assume it will happen slowly. This is evdident from the fact that more girls are being born then boys today and more males are dieing in wars.
The Russian's aggression in Chechnya has left a large imbalance of male-female ratio thus forcing the Russians to allow Chechen to marry more than one women to deal with their female-male ratio. Same thing is going on in other parts of the world. Zionists are torturing and killing male Palestinians, hindus doing same to kashmiris.
My cousin was born 5-6yrs ago, he was the only male in the baby ward.
also, someone I know sent me this message:
What I wanted to say to you today is regarding the 50 Signs of the Day of Judgements. I've read several of these "lists" (for lack of a better word) and this one really caught my eye:
24. (in the future) The number of men will decrease, whilst the number of women will increase, until for every man there are 50 women.
and the reason this caught my eye was because I am a student, and I am currently taking a Genetics class. For one of our class activities, we went to Carnegie Hall in Washington D.C. and listened to a guest speaker, Dr. Page, who is the head of Whitehead Institute. What he spoke to us about that day was "The Rotting of the Y Chromosome"
I am sure that you are aware that the Y chromosome is a sex chromosome that gives the human the sex of a male. I thought it was very interesting when Dr. Page started talking about how the Y chromosome used to be longer and now it is considerably shorter/smaller than the X chromosome. The reason for this is unknown but it is believed that the Y chromosome is essentially "rotting" and in a matter of 10 million years or so, it will self-destruct and males will be born in few numbers.