I read all of the wiki article, not just the quoted parts. But I’ve decided to pick this part out and say that out of context of the rest of the article, what would you conclude

Toward the end of his life, Steiner predicted that race will rapidly lose any remaining significance for future generations.[313] In Steiner's view, culture is universal, and explicitly not ethnically based, and he vehemently criticized imperialism.[317]

In the context of his ethical individualism, Steiner considered "race, folk, ethnicity and gender" to be general, describable categories into which individuals may choose to fit, but from which free human beings can and will liberate themselves