Desperation can also change the nature of a man. Ultimately, as Zulo said, men and woman change themselves.. thier life path, despite guidance, is still very much thier own to choose. When an honorable man has nothing, he may choose to steal. When a truthful man is put into a certain situation, he may choose to lie. Given enough of this they would adopt it, again and again. In a way it's a path of both corruption and purity that we go through in our lives. To think, sometimes, we can't change.. but only because nothing has changed in our lives.
On the side, I am totally in favour for diversity. ^^ I'm not for or against cloning.. but I definitely know that in order to clone as Natalie suggests, chances are, they'd actually have to rewrite how woman respond biologically and physiologically. Besides, you know, sooner or later, they'd just be cloning em with dicks anyways and we'd have an entire race of hermaphrodites before natural procreation began again and.. if the gene pool hadnt been sterilized by that point.. woman would begin producing both male and female children, and so the cycle continues. ^^