The article hits some glaring examples of "nations behaving badly" but could add many others, including the elimination of the native Tasmanians, actions by all colonial powers in the Americas, Japaneese occupation of Korea, etc., etc.

It was the nature of colonial powers to regard the natives of less technologically advanced cultures as sub-human. The "Encyclopaedia Britannica" articles (esp. 11th ed., 1911) on some of the "lesser" peoples (Negroes, etc.) exhibits this view.