Your search for an use, indicates a meaning of life. There is none. We as humans (men and women) just exist.
Do you think anyone needs me as protector, as breadwinner? And with artifical vaginas in sexshops, same sex marriages, adoption and surrogacy, what is the point at all?
"Will there come a time, were none of us is needed anymore?" - Yes, it has already arrived. And? Whats so terrible about being independent? Most people see this as an advantage. Why should I be said, that men, are no longer depending on me but are able to choose freely? Why should I be sad, that my partner dont need me for cooking, because he is a much better cook then I am? Why should my partner be sad, that I dont need him to change my car wheel? In the opposite, because he loves me he is happy that I can do that on my own, because if I have a car accident I am not depending on the help of foreigners. And instead of taking every job that is offered to him, anyway how sh***y the boss treatens him, he has the option to reject it, because instead that two people, depending on his income, are starving, he can take all the time he wants to choose his job he wants. And instead of working for me as a slave, he was free to study on university.
Why is that so bad in your oppinion, that my partner were not forced to do things because of people depending on him, but was free to choose to do what pleases him?
Yes instead of an necessary, saltless cabbage-stew, you were forced to eat in earlier time without an option to choose, I got the chance to be my partners metallic paint he loves and could choose freely on his own, while my partner is the grated chocolate on the cappucino of my life. I like being a beloved freely chosen topping instead of an necessary unloved must-have. 