I've been working on it for two days now and I have still not made it all the way through this great post on L'Hote. As I was thinking I should finish reading it before commenting on it, it occurred to me that maybe there is no strong labor presence in the blogosphere because people who care about labor are working very hard organizing people and they have little free time to be thinking about how to craft a left critique of the modern political scene, let alone write about it. Lord knows there are precious few brilliant people in the labor movement today - dying professions tend not to attract large numbers of the best and brightest - and those that exist need to be in the field, not running blogs.
And I second Farley at LGM, let's not be thinking that the modern American labor movement is populated with a whole of far-left people, especially in any kind of leadership role. Hasn't been the case since the 50s. As the post itself makes clear, centrist liberals have been willing to run away from the crazy commies for a long time now and people who espouse far-left ideas do not rise high in any American bureaucracy, including labor.
All of which is kind of covered in the post itself. I wish I had more time to engage with it.