It is wrong to have such an attitude about Israel, the United States or whatever country we favor. We should be willing to protest when our favored country does something wrong. However, this should be tempered with some common sense. G-d has given us a message to carry to the world. That is our job.
Christians have a good message.
Of that I have no doubt, but they lack some of the most important messages that Judaism has held in trust for this world. He emphasizes that it is not a Jew's obligation to always support Israel. I agree with David that we are not obligated to support Israel in every instance, but to imply that the government of Israel is not particularly special is wrong. It is the only democracy in the Middle East. It is a good friend of the United States and not just a fair weather friend.