Former Obama speechwriter Sarah Hurwitz made some very revealing remarks during an appearance at the Jewish Federations of North America General Assembly on Sunday, expressing frustration with the way younger Jews are dismissing pro-Israel arguments because of the carnage they’ve seen in Gaza.

“We are now wrestling with a new I think generational divide here, and I think that’s particularly true in that social media is now our source of media,” Hurwitz said. “It used to be that the news you got ...