“Though Singer was an American writer, with a couple of National Book Awards to prove it, that doesn’t feel like the right nationality to put down on the Nobel list. Nor does Polish, which matches his birthplace. Jew is the word we’re looking for here. He’s not the first Jew to win the Nobel Prize in Literature, but he’s the first one to win it for writing in Yiddish, and we’re not going to see another one.”
Source: Daniel Handler, “What the Swedes Read,” a recurring column in The Believer. The column on Singer appeared in the May 2014 issue, which I had the delight of thumbing through over the weekend.