It's an interesting thought, JohnFarley -- I actually came back to say that I think it could be helpful not to think in terms of European anti-Semitism, but to look at how it's appearing differently in different countries, because I don't think it's the same everywhere.
I live in Germany, there are definitely still right-wing groups and incidents here but there is also a very strong determination on the part of the government to clamp down on them, for Germany not to go down that path again. Thousands of Israelis and European/American Jews have actually moved to Berlin in recent years. Many synagogues have permanent police presence outside -- which in a way is sad, that they are necessary, but it also shows that they are serious about deterring any possible attacks.
It feels much different than France, where I also used to live, where I felt there was more open racism against both Jews and Muslims -- and where the National Front did so well in the last election.
The sad thing about these discussions degenerating into Israel-Palestine arguments is that it detracts attention from European governments, who ultimately bear responsibility for violence and hatred in their societies and who are mostly not doing much about it.
I'd be curious what people think the British government should be doing about rising anti-Semitism.