My point was that total war is always chosen belatedly, when it is most costly, because it is considered "unthinkable." So I agree the smaller battles will be fought unless or until the Jihadists go too far, forcing more global action (total war), tardy though it might be.
Afterthought. An Israeli attack of Iran may not be such a small war. But then again, I don’t think many (any?) Muslim countries will leap to the defense of Iran (HAMAS and the Palestinkians excluded) so it need not be a global conflict. If we are attacked by Iran in such an event, a certainty if Iran is to be believed, Iran should/must be dealt with severely. But there’s little chance our dictator-in-waiting would do that.