As things look now, the American Jewish group of the future will be anchored by the Orthodox and by those among the non-Orthodox willing to identify unambiguously with Judaism. Boasting higher fertility rates than other Jews, this population will insure the future viability of the American Jewish community, albeit considerably shrunken in its numbers and infrastructure. On the periphery will be the so-called borderland Jews whose interest in Jewish life will likely focus on one or another aspect of Jewish culture but will be episodic and in competition with other compelling aspects of their identities. Already, some children of intermarriage refer to themselves with sardonic self-consciousness as “Half-Jews” or “mongrel Jews” or “FrankenJews.”
Jack Wertheimer, “Intermarriage: Can Anything Be Done?” Mosaic (September 2013).