Untill Zionism started, Jews and Arabs co-existed impressively peacefully across the middle east (especially when compared to the situation in Christian Europe at the time). Think of the Rambam, who was a royal officer in the court of the King. I think that historically, its very hard to say the pre-Zionism levels of anti-Semitism in Arab society were anywhere near what they are now.
Also, the latest War in Israel caused an undeniable uptick in anti-Semitic attacks and incidents across Europe.
I am not trying to justify anti-Semitism. Obviously, they are 100% wrong. I just think its ironic that the proposed solution to anti-Semtitism ended up being such a large cause of the problem.