I think we should use specific terms for specific things. There is differences in the origins, interests and means of different bigotries. Antisemitism is very different from Racism against Black people, which is very different from Racism against Asian people, which is different again from Racism towards Middle Easterners or general Islamophobia.

For Jews it makes sense to distinguish Antisemitism, as it is specific in regards to the Religion+Ethnicity combination you just don’t find with Christianity or Islam. E.g. there is many Christians and Muslims of all ethnicities while most religious Jews are also ethnically Jewish.