I think we can all agree that Jews make a valuable contribution to the community, wherever that community may be, but that still doesn't stop some people from hating them. One similarity between Sikhs and Jews is that both communities, (with the exception of Israel,) are used to being minorities. That means that by and large they try very hard to fit in.
This thread isn't about an attack on a synagogue, but an attack on a gurdwara, and I would imagine it was because they looked like Moslems, not because they looked like Jews. In the West the real '1930s type' race hate figures are Moslems, not Jews. Islamophobia is a far greater problem than anti-Semitism, (in the West at least.)
I think the big contribution that Jews make to the western world is that when an individual is not enjoying his family Christmas get together, and getting a headache, that person can say to himself, "If only today I could be Jewish."
The joke used to be that on Christmas, when there were more regular movie theaters around, Jews (I'm talking about the non-orthodox) would go see a movie, and then go to a Chinese restaurant, or vice versa. I once heard my mother voice concern that the Chinese restaurant owners still needed customers on Christmas.
I parse that term "hate" when it is referencing the feelings towards Jews. Most people do not "hate" Jews. They might be a bit Judeophobic (what are "the Jews" up to), or resentful of their appearing to excel academically oftentimes, or likely, in my opinion, on a more gut level, just consider them a threat to the "gentile" culture that is valued by many a person of the masses. Meaning, few want to wake up one morning and find out that there are more Jews in their neighborhood than themselves, and now their kids have to study more to compete with "those people" to become school valedictorian. At least in the States. Perhaps, not in Britain, since between you and me, the average Brit is more intelligent than the average American. Why? Perhaps, because to think nuanced, one must speak nuanced, and Brits can speak English (with more vocabulary, in my opinion) than Americans. Many Americans have a hard time, in my opinion, to vocalize a cogent thought when interviewed on tv news. The U.S. should probably open up the immigration gates to Brits.
We do not question if certain breeds of dogs are more trainable/intelligent; why not humans?