You seem to have forgotten Europeans and Caucasians have left a permanent and indelible mark on the human race. Take a look at population demographics across the world and you'll see the genetic footnotes in populations the world over containing LARGE percentages of European DNA. From multiple events in antiquity to colonial times. Almost every population on this planet has some high levels of Caucasoid admixture, excluding some central Africans and Koreans, and even these peoples usually have some small amount as well. Lets take a look at some of the demographics, shall we?
Europeans - Caucasian. Russian Steppe/Siberians - Caucasian. Near Easterners - Caucasian. Levant Semites, Caucasian. North Africans - Caucasian. Far Easterners - 50% Caucasian. East/West African - 10-30% Caucasian. Mongolians - 40% Caucasian. Chinese - 10-30% Caucasian. Ethnic Southeast Asian - 20-40% Caucasian. The majority of North and South Americans are also Caucasian or Mestizo. Mulattoes are also Caucasian, lots of those these days. Even isolate groups like Native Americans, Polynesians, Aborigines, and Japanese peoples average around 10% more or less.
So whether you like Caucasians or not, you probably are part Caucasoid, and whether every last one of us dies off or mixes ourselves, we're here for the long haul, faggot.