I hope you understand that the bastards that hit London today think the Brits will fold and turn tail like you did. You cannot react and fold to terrorists, it only validates their methods. Appeasing only leads to more attacks.
We can all criticize or even hate President Bush but no one can say he has appeased the fanatics. The only solution is what is happening in Iraq already... democratic governments and societies with more liberty. Fanatacism does not breed well in those conditions.