Francis and Carrol,
I've never met Lerner and don't know anything about him but what I read (past tense) in the papers. My reference was to the Tikkun folks as a group, a couple of whom I know, as harmless at worst and normal radicals at best.
The passivity and bourgeoisification described in this post could be applied with equal justice to many varieties of academic or middle class radical. I think we're being a tad ornery here. You did admit the desire to rant. Why not have an ice cream sundae?