I don't begrudge the DLC their desire to have a dialogue about where the Democratic Party needs to stand on various issues.
What bothers me is the self-defeating way they make their arguments. They don't seem to see it that way, which gives me the impression that they don't mind seeing Democratic failure when they can say they told us so. Which means that in some fundamental way, they don't really identify with the Democratic Party.
Chris at Interesting Times has some good thoughts on this dilemma here, here and here.