There is no question that the Lubavitcher Rebbe left an impressive, even awe-inspiring legacy.
Nonetheless, an assessment of that legacy must take account of the fact that he bears primary
responsibility for the development of a messianic movement that turned out to be misguided and
persisted after his death as a movement of posthumous false messianism. The greater issue is whether or
not admiration and sympathy for Chabad will lead to the legitimation by the larger community of this
betrayal of the historic messianic faith of Judaism. (from Conclusion)