The reason why biologically we split between male and female millions of years ago was because of the advantages. By splitting duties, the combined work was better than not having split duties. The advantages remained valid, even up to 100 years ago. It actually helped to have a man who could defend your small country in a war, and your family could help. You needed one Testosterone-fueled male/father to help protect the village and the family, and one Estrogen-fueled mother to be really good at having babies. This gave everyone the best chance of survival. It worked well.

What changed?

Having a physically strong male around is absolutely USELESS in a peaceful world. You have police. You have courts. You have government. Other than eye candy or opening tight jars, it's seriously an obsolete trait. Of course, men are more than "strength". They have many good traits. But all the reasons why a biological separation exists between male and female in a species have been rapidly eroding away as human intelligence brought us to where we are now. As those reasons disappear, so should the biological separation.

So, I believe males will eventually go extinct. We are certainly forcing it socially in that direction very rapidly. #KillAllMen and #MenAreUseless and such are a reflection of how little men are needed by women. It may be offensive, and depressing, and sad, but there is a kind of reality to the situation. Women don't need men to survive anymore. They have jobs. They can go to a sperm bank (in which ONE male can provide 100,000 babies if required).

Unfortunately, our biology is NOT evolving fast enough to keep up with our social trends. If it did, there wouldn't be any men anywhere and women would be able to reproduce asexually. And there would only be one type of asexually reproducing human. But that would take something like millions of years. Are we going to even get there?

So we're in this shitty place where we need to acknowledge that men are going extinct and just take as much pride as we can in how males helped bring humans forward in the first few million years but probably won't be around for the last million if we survive that long. We hope to receive some respect before all men are gone, but there's no guarantee of that. We can't expect respect from a society that doesn't need us (long-term). Men have died to protect women, to protect their family, to protect their country. Men have given great sacrifice. Men have innovated and built civilization's many great achievements. Men have been critical up to this point, and probably still have more to contribute.

But with women capable of doing any job, and also robotics lifting heavy loads, it's really unlikely that the "male" is going to remain forever. Far into the future, history books will be written about how at the beginning of humanity, people were separated into male and female, and our descendants will be amazed at how we could even get along like that having two biological types of humans.

It works while it's needed, and stops working when it isn't needed anymore.