5000 years ago.... so what.
That's the constant story of any civilization/country in this world even more recently. Then native populations from Australia, North & South America should retaliate hundred of years later, reclame their land and keep a grudge forever?
Israel legitimacy comes from a religious book. I respect religions to a certain limit but it is as ridiculous as any extremist interpretation of the Quran.
A land was given by the United Nations, they should accept it as it is (was) and keep low profile without taking out of their asses GW Bush bureaucracy-style theories about Nukes targeting them.
About the Israeli children becoming orphans, that's really sad. At least the other side kill both the parents and the children with white phosphorous in primary schools. "/s"