Undefeated? No.
However, IT has the most powerful natural influence over man other than basic needs such eating, drinking and needing a place to sleep.
IT is how I know there is a God. There has to be being out there somewhere than was intelligent enough to know there had to be a way to bring men and women together to reproduce and raise families. Something powerful.
Yes, women compliment us in many ways. They bring a softness, caring and consideration to our lives. Comfort. But, without IT men would have killed off women a long time ago. Because they are annoying, disrespectful, disobedient and all of those other things too. If men could reproduce by breaking off an arm and it would grow into a son, like a starfish, then there would be no women on earth. If there were, they would be like pets. Dogs. Trained to fetch, sit and serve us when we needed something. Or man would have killed them all off. This world would be like Sparta. Harsh. Cold. Full of war and survival of the fittest. Like now, except much more harsh and stark.
Oh, but intelligent design, if you will. Saw fit to give our "help meet" a tool to calm this vicious beast called man. A tool by which mankind cannot survive without. One which makes this whole interplay between yin and yang possible and necessary. And IT has been very effective since the beginning of time. Because it was designed that way.