I'm all for it...
Humans are taking the reigns of their evolutionary path and embarking on this journey to their future. We are the first creatures on Earth (as far as we know) to evolve the capability of forcing changes to our physiology to adapt to the environment, rather than the environment forcing change upon us. It's a first step for the adaptations necessary for our new environment in space.
Genetically engineered humans will seed the planets and the human swarm will conquer the Galaxy. It's our destiny.
Where do you get the idea that humans have a "destiny?"