You do realize that, on a species level, maximizing diversity makes a hell of a lot more sense than artificially inducing selective pressure, right? The more biodiversity we have, the more likely we are to survive low-probability near-extinction events (or other cataclysmic changes in selective pressure).
Adaptability is not the greatest measure of superiority, otherwise the human species is outclassed by organisms such as bacteria. It is because of our complexity and our intelligence that we are superior. Experimentation in higher thought and action is the greatest human achievement, not a perpetual, ever-advancing cycle of evolution. If humans "evolve" into mindless idiots that exist only to reproduce, they would be better off extinct.