The Benjamin's and the Law of Return

Yesterday’s Guardian carried an article about the Benjamin family from Liverpool who are immigrating to Israel. As Jews they will have no trouble taking out Israeli citizenship, and as members of the state-approved religious/ethnic group will “be welcomed as heroes”. Under the Law of Return ethnically-cleansed Palestinian families cannot return (wrong religion, wrong ethnic-group), but a Jew anywhere in the world is welcome. There is a picture of the Benjamin’s, who appear to be a normal English family, and I bear them no ill will; but the injustice of this must be obvious to any reasonable person.