In reality the arabs living in what is now Israel were offered peace and a chance to become brothers with their jewish neighbors when the state declared independence. It was the invading arab armies (read: Jordan) who announced to them they should flee before the oncoming Arab armies. They were promised that after leaving and an Arab victory they would return to their homes victorious and free from having to live with Jews nearby. They chose to leave and become refugees with the plan to return shortly. Fortunately for the Jews, this attempt to wipe us from the face of the earth [again] failed. Before you decry the "poor palestinians" read a little and know what you are talking about. Israeli arabs and the palestinian refugees are one and the same. The difference is, those Israeli arabs realized they could prosper and chose to live with Jews instead of killing them.
First refugees travelling on Hungarian bus arrive at Austrian border (Reuters)
from the article: IDF: Demolition of settlement houses may start at end of next week