It is well known that people living outside a troubled territory tend to be more extreme than the residents themselves. In the Hamas case, the leaders living in Syria are more extreme than the Gaza leaders. Only recently did Zahar of Gaza resign over the Shalit deal because the Syrian leaders wouldn't compromise. The outsiders don't feel the pain, so their ideology is stronger than realistic considerations. The Diaspora of Jews feeling strong attachment to Israel, are mostly right-wingers. In the US, their true face is AIPAC, and they follow right-wing directions even when the Israeli government disapproves.. For example, the US Congress passed a law right after the Oslo agreement was signed, in order to undermine Oslo, and against the wishes of Clinton and Rabin, but according to AIPAC's direction. My advice: Think of the Diaspora Jews as justifying the saying "Oylem Goylem" and spend efforts on convincing Israelis (who are also afflicted by blindness, but not to such an extent).
from the article: Jews who want to see Jews leave Israel