“Furthermore, Palestinians in general (Christian or not) are not hostile to Israel.”
Not my experience.
Indeed, while I think this is changing (for the better), Christian Arabs have generally sided with muslims arabs against Israel.
Yes, the Jews deserve a nation in Israel but at the same time it resulted at the loss of Arabs' lands. After all, the Arabs were not guilty for the sins of the holocaust so why should they give up land for the Jews?