I know that Jews lived in the land of Islam. And I don't agree with you that we treated them as 2nd class citizens, just for an instance, Hazrat Imam Ali (A.S) the first Imam of Shia Muslims and 4th Caliph to rule the Muslims used to work in the garden of the Jew for his daily income. Do you think during such times Jews were treated as second class citizens. Now I'm not saying that during later time of Islam some extremists didn't tried to hurt Jews but I still don't think that Muslim world treated you as a 2nd class citizens.
That's just called denial.
Then please tell me why the ruler of the Muslims work as a farmer for a Jew? He could easily confiscated the Jew's property, no?