Jewish-dominated intellectual movements were a critical factor (necessary condition) for the triumph of the intellectual left in late twentieth-century Western societies.
Collectively, these movements have called into question the fundamental moral, political, cultural, and economic foundations of Western society. It will be apparent that these movements have also served various Jewish interests quite well. It will also become apparent, however, that these movements have often conflicted with the cultural and ultimately genetic interests of important sectors of the non-Jewish, European-derived peoples of late-twentieth-century European and North American societies.
From Kevin MacDonald’s Culture of Critique, available for free (for now) here: http://archive.org/details/CultureOfCritique