I had been reading on this topic since pasting my earlier replay and have found several resources talking on this very subject.
http://users.erols.com/mwhite28/gunsorxp.htm
States the following:
The Holocaust, however, is a special case. It still rates the two points assigned to the secular horrors of the Nazis, but because it was the culmination of centuries of Christian anti-Semitism, Christianity easily earns an extra point from Question 5. Because of the loopy racial theories that the Nazis used to support their atrocities, we probably can't say that the Holocaust was mostly religious in origin, but since the only real difference between the Jews and the rest of Europe is religion, we have to at least give religion partial credit.
Again, not trying to prove something either way. I think "religion" may have relivence that in one explaination versus another can be found to be a source of conflict in one form or another.
Like I said earlier, I'm not trying to prove my point, or debunk the others. There is just a lot of interesting reading on the topic....