Cultural identity requires both external difference from others and internal self-difference.

Evidence

Rodolphe Gasche comments that this nonidentity is itself doubled, is “double in kind.” … First, the identity of a culture-here, Europe-presupposes “an external difference. This is a difference with itself that derives from identity’s continual reference to the identity of other cultures over and against whom any self-identity is established. These other cultural identities, as identities of the Other, can simply be different from the one of European culture, but they can also be identities that stand in relation of opposition to European identity.” … As Derrida puts it, “there is no self-relation, no relation to oneself, no identification with oneself, without culture, but a culture of oneself as a culture of the other, a culture of the double genitive and of the diffirence to oneself. The grammar of the double genitive also signals that a culture never has a single origin. Monogenealogy would always be a mystification in the history of culture.” — Gil Anidjar, The Jew, the Arab, 66

Categorization

• DEEPTHINKING: The doubled nonidentity model — external difference from other cultures plus an anterior internal self-difference — is the precise conceptual machinery the whole genealogical project turns on; monogenealogy is declared a mystification.
• XREF: This Derrida/Gasche structure of doubled nonidentity underwrites and explains the antisemitism-Islamophobia bridge claim the reader is building across the Islamophobia-cluster.