Further to these earlier posts, there's a review of the new Saul Friedlander volume in today's Observer:
Jewish persecution, argues Friedlander, could not have been taken to its genocidal extremes without the personal obsession of Adolf Hitler; yet the course it took only became possible because of endemic European anti-Semitism. 'Not one social group, not one religious community, not one scholarly institution or professional association in Germany and throughout Europe declared its solidarity with the Jews.'