If I had to guess, after seeing this weird shit and watching too much pseudo-archaology debunking stuff lately: he means the descendants of the Mediterranean and Atlantian people. There's a crazy group of people who think Atlantis is real, and either had a worldwide advanced culture, or at least through the Mediterranean.

The Atlantis myth was heavily accepted by the Nazis as the ancestors of the Aryan people, which is why the Aryans are "so much better" than everyone else. It is still a popular tool to belittle ancient people and to say their accomplishments had to be done instead by this white Atlantian group instead.