"Land belongs to the Jews,"

Again today whilst reading The Guardian, I came across an article that reeks of the same sort of self-righteous, ill-founded and immoral tripe that yesterday's creationist article stank of.
Major Adrian Agassi, who is an Israeli army judge and military judge is a man who only emigrated to Israel(or the "State of Jews" as he prefers it to be called, which he feels would have avoided confusion) from England after he had been born, bred and educated there. Yet he still feels that there is weight in his sentiment that Jews have God-given, Bible certified right to lay claim to Israel and increasing the amounts of 'settlements in the West Bank' - which is effectively stealing Palestinian land and leaving thousands homeless. In his opinion, the land is Jewish inherently, but peace is not even an aim that can be considered, calling the idea, "against nature," seeing as Jewish-Arab conflict dates back to Biblical times. A little argumentum ad antiquitatem in true religious fashion. Indeed he doesn't even try to deny that this is a war based on so called pages of 'holy scripture', "Is this not a religious war?"
What can we take from this though? This Englishman, from London, comes from a family of Rabbis from Baghdad. Is it unfair to assume that his family would coax his mental development of opinions to think in way he displays? This idea of the 'promised land' is leading to increased conflict, death and religious hatred. No signs of it shoring up are evident from the observable tide.