Core Idea
This modern form claimed that Jews could not simply convert, assimilate, or become equal citizens because Jewishness was treated as permanent biological or ethnic difference.
Main Pattern
The recurring move is naturalization: social myths become claims about heredity, purity, destiny, and the health of the nation.
Historical Snapshot
Nineteenth-century racial science, nationalism, and imperial classification gave older anti-Jewish ideas a new language of race and national struggle.
Modern Echo
White supremacist and ethnonationalist movements still use this frame when they describe Jews as outsiders directing immigration, liberalism, or demographic change.