The original population that the Indo-European Greeks had vanquished when they penetrated the south­ ern Balkan peninsula had, according to Curtius. … - Stefan Arvidsson

Several people who have examined Indo-European scholarship have drawn parallels between research about the Proto-Indo-European world and myths, in the sense of narratives about origin. Indo-European research has, in many ways, been an attempt to write the origin narrative of the bourgeois class - a narrative that, by talking about how things originally were, has sanctioned a certain kind of behavior, idealized a certain type of person, and affirmed certain feelings. Certainly, there have been some scholars who have not identified themselves with the Proto-Indo-Europeans, but they are few.

During the postwar (post 1945 CE) period, these two theories (Father Wilhelm Schmidt and Father Wilhelm Kopper's theory of primal cultures, and Georges Dumezil's theory of Indo-European mythology) have completely dominated research about Indo-European religion and culture—in spite of the fact that they arose in an ideological atmosphere that did not differ much from the Nazi one (Arvidsson 2006, p. 239, parentheses added).

The classification "the Indo-European branch of humanity" could be defined either as the group of people who spoke some Indo-European language (Latin, Sanskrit, French, Swedish, Persian, and so forth) or as the group of Aryans, who were typically imagined as tall, blond, and blue-eyed specimens of homo sapiens.