It's a meme, unexpsoc. Google it. No, I didn't invent it, and no, I wasn't referring to you (unless you're suggesting you go around being anti-Semitic)?
I do find this exceptionalising of the Jews and Israel rather tiresome.
Another analogy - if you meet a Muslim, do you find it really hard to avoid offending them by 'accidentally' talking about terrorism? Or do you just avoid being a dick and saying stuff that's obviously offensive?
Just use your common sense.
I find the idea that it's hard to avoid "accidentally" being offensive quite offensive in itself. It suggests that Jews are especially touchy and it's sooo hard to avoid offending them.