I think the more legitimate question to start with is: what would happen to where humans were asexual
Some believe we will one day become just that. Oh am I glad I live in a time period where man still is savage and I can bust a nut. Ahhh what a feeling. Even Vlacuns have sex once every 7 years. But with human advance's in genetic engineering and the pursuit of a race of people without disease and birth defects one has to wonder.
I wonder if you guys realize that there is such a thing as human asexuality. The big difference is that human asexuality refers to an unusually low sex drive, therefore meaning that asexuals are people who aren't interested in having intercourse.
I don't think that's what is being thought about here, but rather a pervasive and thoroughly entrenched asexuality in every human (or even a majority), the possibilities of such an existence.
If humans were asexual, we wouldn't have arguments like this: [ame=http://www.youtube.com/watch?v=G-ACdtGH6-I&feature=related]superior gender (Futurama) - YouTube[/ame]