I appreciate the wish to undermine the 'unique German anti-Semitism' argument, but I can't help but think andie is going too far. Some Poles were enthusiastic anti-Semites, but the extermination policy was imposed upon them by the Nazi state. Shifting the blame on to East Europeans was a common manouevre of west German historians of the era, but does not really stand up. Eastern Europeans were victims of the Nazi domination, not for the most part, perpetrators - though there were of course a lot of enthusiastic anti-bolsheviks to be recruited in Estonia and the Ukraine.
That said, Goldhagen is plainly a dunce, an issue that was had out some years ago on the Marxism thaxis list, I think.