Jesus never fought back either...
Please don’t equate Bush with Jesus. Bush ran for office, and took on the mantle of leadership in our party. With that comes responsibilities and obligations, part of which is to defend the party he is leading. If he is unwilling to do that, as he obviously is, he should never have taken the job to begin with. The president’s greatest tool in his arsenal is the bully pulpit (ironically), and Bush has deliberately refused to use it.
Which is why he was deliberate in differentiating that which belonged to Caesar, and that which belonged to God...and regarded each as having its rightful place.