Poor Kristof. There are always these well-meaning liberals doing and saying things he doesn't like. Frequently they're unnamed. Now, it is true of course that there are perhaps some well-meaning liberals who are calling for a troop withdrawal. There are also probably some well-meaning conservatives calling for the same. And, there are also some batshit crazy conservatives who got us into this mess in the first place who still actually have some power and influence over our foreign policy who are... calling for a troop withdrawal.
Now, if you had a column in the Times which would you write about? Unnamed, unspecified "well-meaning liberals" who, as always seems to be the case, are causing serious death and suffering according to Kristof. Or, you know, the people actually responsible.