> A vast majority of people in the "Western world" perceive their countries as being bigger than they are. Thus from a primal, tribal perspective this further inflates their perception of "their peoples" being more important than the peoples of other areas.

That’s a fun hypothesis, but is there actually data supporting (1) that “a vast majority” of westerners misperceive country size in this way, and (2) that specifically such a perception causes them to consider foreigners to be unimportant?

Although implicit bias exists, studies show its impact on the real world is much smaller than commonly believed.