They certainly are living in another world, but at least this guy is trying. He's at least saying that reflexively condemning anything the US does is a stupid position to take, and for many on the left, that's progress.
But there are many areas where he and the others fail to confront their own hypocrisy. Did you notice, for example, that he never mentions the horrible treatment of women by radical Muslims such as the Taliban? Now it's a fundamental tenet of the left that women are oppressed, men are pigs, etc. and that our society can never do enough to raise the status of women. But do they hold anybody else to such a standard? Of course not - they don't even mention it. So they've still got quite a ways to go before the left can be accused of honest argument.
You state "Did you notice, for example, that he never mentions the horrible treatment of women by radical Muslims such as the Taliban?"
In fairness the article does state ... many feminists were decrying the Taliban long before President Bush discovered what a burqa was.."
At least, Adam Shatz got this one right.
The only problem is that he's asking the left to become more like the right -- i.e., to exercise "intelligent synthesis". But, I'm not at all sure they're up to the job.