There are many very light skinned Japanese, particularly among the higher nobility (all of whom no longer carry titles) but their families know who they are. Even Cherokee Indians have a substantial light skinned subset, as do other American Indians.
Light skinned, yes, but dark hair and eyes. I lived in Alaska for about six years and had many Aleut friends. I've also traveled in China, many with fair skin, but dark hair and eyes. Mexico has a surprising number of natural blondes.
I am a blue-eyed, blonde Dane.
I think if this wonderful planet survives long enough, all peoples will meld into the same color.