According to evolutionary psych, men had to play 2 roles really well in order to be attractive to women. Provider and protector. If we take this premise to be true, it could be argued that men are no longer of any good to modern women and it should be no surprise that most are unattractive.

In the modern era, wealth and resources are increasingly generated by cognitive efforts as opposed to physical labour. Since no discernable difference exists between men and women in median cognitive performance, we could say that we are finally in an era in which women can provide themselves just as well as a man can.

Then there's the protector role. Depending on how you rate Steven Pinkers analysis (People like Taleb think it's BS), violence in the modern era seems to be on the decline thanks to the invention of modern society. In addition to that, given that most violent crimes are committed by men, one might say that having a man for protection is more like a nation possessing nuclear weapons; the only reason you want one is to protect you from others. If men were to disappear, violent crime would become a rarity.

Some would say that the only reason one must care about the plight of men is because currently, sperm can only be harvested from a living, healthy male. Hypothetically, you'd only really need a small city of men (the best looking, most intelligent, butter smooth conversationalists, perhaps) to impregnate the entire female world. Hence, would you say that men have suddenly become obselete?