I appreciate the discomfort that many Jews feel being categorized as white. And yet, this use of the term “passing” is wrong.
If an American Jew from the early/mid 20th century were ever transported to the present, they’d be incredulous at how today’s anti-Semites (white nationalists notwithstanding) not only consider Jews “white,” but fiercely object to any Jew who dares to assert otherwise. Such is the amorphous nature of anti-Semitism, constantly shape-shifting in accordance with whatever the prevailing zeitgeist happens to be.
For the record, my brother is not adopted. He was born, and named in Argentina, where Jewish boys have names like Pablo, Jose, Federico, Mateo and Fernando.