Bold claim.
On the other hand, humans are the apex predator of the known universe, the output of 4.5 billion years of evolution driven by relentless, unceasing violence. It's not clear that a genetically improved species would abhor violence.
But I also have to preach some caution about meddling with human genetics. At this point we have what I think you can agree is a relatively poor understanding of the potential consequences of splicing DNA in a human zygote. Crashing headlong into an age of careless modifications could be disastrous for the survival of the species.
I just finished reading the Firefall duology by Peter Watts (http://rifters.com/) and one of the themes in the second book is that "baseline" humans are in some ways hardier than modified transhumans. Natural selection has fixed a lot of the bugs in us baselines over millions of years, and that's a hard-won legacy that we shouldn't be too quick to discard for barely-understood alterations.