What do you think about some Roman Catholic Cardinals that say that the Holocaust was greatly exaggerated by..?

I believe there were concentration camps and that people were killed. I don�t believe they were exclusively Jewish. Where did they get the number 6,000,000? Old people, retarded, deformed, political, religious, Gypsies, Prisoners of War and others were killed. Since people were cremated and their bones smashed and buried, how can one say this or that pile of ash were Jewish, Christan or none of the above? Yes! I believe this is Jewish Propaganda. The Holocaust seems to just apply to Jews. The other dead do not matter.