Excellent observation. I have commented on this before, but they talk this way because this is how the utterly unreadable and overly dramatic Koran is written. I am not making this up. The Koran has versus like that. Hence, their leaders use language like this:
Oh Muslims! The Jews are Jews. Their character and custom are the corruption and destruction of this land. We keep warning you: the Jews are a cancer that spreads inside the body of the Islamic and Arab nation. Oh, hear me! Oh!
Sheikh Ibrahim Mudayris
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This depiction by PA leaders of Jews as animals is reflected in popular behavior and language. At one anti-Israel march, PA demonstrators wrapped a donkey in a Jewish prayer shawl, demonstrating the imagery they had been taught of donkeys as Jews.