maybe, maybe not
Homogeneity is a bad word to many and I have been often misunderstood when I have raised the subject.
I do dream of a homogeneous species but my vision is of a beige humanity that has outlived the need for religious fervor and has adopted the best and strongest qualities from all cultures.
The future possibility of blond, blue eyed worlds colonized to maintain their own idea of racial purity and cultural superiority may be a possible reality but it would not bode well in the long term. Spreading racial and cultural conflict throughout the universe could eventually lead to cosmic problems. If that is your vision, I disagree.
I am a big believer in oneness but how we get there does matter.