In order to pretend that descendants of Arabs who fled Israel in 1948 are "refugees," it simply has to lie.
The Israeli—Palestinian Conflict
Since the formation of the state of Israel In 1648, a series of seemingly intractable wars and incidents of ethnic violence have displaced at least 6 million people. Close to 1 million Jews fled predominantly Arab and Muslim nations, where they faced hostility over the establishment of a Jewish state In addition, more than 5 melon Palestinians are considered refugees after being displaced by the hostile events that followed Israel's creation.
Even if for some reason one can say that refugee's descendants will be considered refugees forever no matter what - even then the basic facts are wrong. About half of the Arabs who did flee in 1947-48 left before Israel was established.
This is the sort of false reporting that leads to anti-Israel sentiment worldwide. If only the media would note every time they mention 5 million "Palestinian refugees" that the number uniquely includes all of their descendants as well, no matter where they live, even if they become citizens elsewhere, people would start to realize that "Palestine refugees" are not refugees at all.