Ok, I'll rephrase, just for you. I think he is attacking what he would suggest are the gross inaccuracies in Krauthamer's assessment of the situation.

Krauthammer, though, is attacking everyone with whom he doesn't agree with his insinuation that they regard Jews as being troublesome. It's certainly an oblique character assassination, but it is a character assassination nevertheless, and since you are endorsing his words, that means that you are also making this character assassination yourself. So you're really not in a position to be pointing fingers about attacking the messenger rather than the message.