I've been to Israel a dozen times and, whilst I would agree that many of them tend to be a bit blunt and tending towards rudeness, I wouldn't agree that they are miserable at all, despite the fact that they are partially surrounded by countries who wish to destroy them.
Israel has been attacked twice by countries intent on wiping it out. Several of those countries remain on a war footing and maintain their policy of wiping it out. I am not a fan of some of Israel's behaviour but the fact remains that they are partially surrounded by countries whose stated aim...
I believe so. If the other Middle Eastern states laid down their weapons thee would be no war. If Israel laid down it's weapons there would be no Israel.