They live in fear. Nobody that stands with the United States should live in fear but they do. What message are we sending if we don’t defend Israel? The wrong one. Whether its our allies or our Embassies; we are being attacked. There will be no winner. This war will happen if something or someone doesn’t do something big. We need a leader. Obamas failed policies brought us to the brink.
Too much appeasement all around from our "leaders". They ignore the lessons of history. Future historians speaking of WWIII will say as much. There is too much pent-up hostility in the world that cannot be defused by any likely "leaders" that will take power. The way I see it, Israel has to pull the trigger on a pre-emptive attack, because no one else (including the USA) cares about the imminent destruction to be waged against Israel. If my children were about to be attacked and the police failed to stop the advances and threats of an attacker, I would certainly shoot the attackers. Better to go down fighting than to do nothing as your children are attacked.
As you say, there will be no winners.