And why are you so hellbent on genocide?
Who are you to say that Europeans have no right to exist? Skin color is just one trait that separates the European subspecies. Hair texture, eye color, skeletal structure, and many other physiological differences also exist. The preservation of the various Human subspecies is every bit as important as the preservation of those from any other species, and to do that they need to have a viable habitat.
If someone were to declare that they intended to make native Africans (or any other non Caucasoid group) a minority within their homelands within 100 years, they would be labeled as the next Hitler, but to say that about the European populations will win you praise as a visionary in many liberal circles.