What caused this exodus? Did they go to the middle eastern territory (which was theirs due to the ottoman empire fighting on the side of the axis during ww1 and causing innumerable war crimes inside and outside their country. Therefore the british whom defeated them with the french under the balfur decleration gave the territory of the Palestine to the jewish people).

It was caused by a war, which you guessed was caused by arab countries whom soundly got their ass kicked. You seem to miss that part because it doesn't fit your narrative of the jews being weak, but beating the arabs. Also you forget the pogroms and exodus of the jews from arab and muslim regions completely. What is next, you are going to claim dresden was a war crime?