I found the article that I was thinking of and referenced at the end of my introduction to Goldberg's piece.  It's from an American Jewish woman in London named Hadley Freeman, and is based on her experience as a staffer with The Guardian, a newspaper that many supporters of Israel (myself included) believe to be overtly biased against Israel.  Here's some of what Freeman writes (my bolds):

What a strange, Alice-through-the-looking-glass time it is to be a liberal American Jew in Britain. When I was growing up in New York, it was a given that one supported Israel. Israel, like America, was a country made from desperate immigrants. It was where my great-grandmother lived after seeing two of her sons go to the concentration camps, and where the memorial for my great-uncle Jakob, who was murdered in Auschwitz, was erected. Israel was the Holocaust’s happy ending, and you only have to look at Hollywood to know how much America loves simple happy endings. Israel = good, Israel’s enemies = evil antisemites. But to be honest, I always resented this. I dislike being told what to think, or people making lazy assumptions about where my loyalties should lie

. . .

So that’s America. And now we turn to Britain, where I now live, and where, as Roger Cohen wrote in the New York Times recently, “not having a negative opinion of Israel is tantamount to not having a conscience”.

. . . .

Jon Henley wrote beautifully in the Guardian on Friday about the rise in antisemitic attacks in Europe. Proud as I am to work for a paper that covers the atrocities in Palestine so diligently, it is outrageous that it took this country’s liberal media so long to report on this issue. It is infuriating that the liberal factions in both countries in which I have nationality insist on taking such a slanted, kneejerk view of Israel. Just as the pro-Israel sentiment in the US so often shades into prejudice against Muslims, so the anti-Israel one in Britain slips all too quickly into antisemitism.

Jews are not Israel (something liberal Jews have been saying for years) but nobody – not a London theatre, not even Steven Spielberg – has the right to tell them what to think about it, or to ask them to prove their good Jewish credentials by either supporting or condemning it. Watch yourself, Europe. Some of your roots are showing.