The sea makes up 70% of the earth! Also, there might be places we haven't discovered too small to see from space!
Because Social Darwinism is a mash between "Survival of the Fittest" and socialogy, races and political groups/parties fought to be at the top. It's natural for large groups in population to think they are better than the rest and given the example of Hitler, Benito Mussolini, etc., it's not hard to see who Europeans think they are. The first option is most likely correct.
