"Okay...there's a powerful 'affinity' between Christianity and the Holocaust, and the murder, torture, and persecution of Jews for about 1000 years."
Christianity is rooted in Judaism, Jesus was a Jew, and almost all the early Christians were Jews, so no real Christian would ever hate Jews, and evangelical Christians today are strongly pro-Israel. Most of the people who risked or sacrificed their lives trying to save Jews from the Holocaust were professing Christians. Nazi anti-Semitism can be clearly traced to atheistic or pagan, romantic intellectual fashions in European academia. There are recent posts on this right here in FR.
"Don't you think you have value and deserve to be free? And your loved ones? And why wouldn't you extend this belief to everyone?"
The idea that I want to be free does not lead inevitably to a belief that others should enjoy freedom. Lots of people throughout history have enjoyed freedom and prosperity while exploiting or enslaving others. The idea that my neighbor is to be valued as myself is a Christian concept. Even people who are not Christians have been influenced by Christianity in this regard.
"Christianity is rooted in Judaism, Jesus was a Jew, and almost all the early Christians were Jews, so no real Christian would ever hate Jews,..."
Hitler thought Jesus was an *Aryan*.
Martin Luther.
Name an atheist who supported slavery in the era leading up to the Civil War. [hint - this is a hard question] Now name a Christian who did. There were both Christian and atheist abolitionists.
Not exclusively.