I'm sure this is true in many ways, particularly in modern times. But history contains stubborn facts that cannot be ignored. I am not hostile to Christianity, so I will not present a point by point indictment of it here. But to pretend that Christians were not responsible for many of the greatest atrocities in history is not dealing with reality. Religion in modern, advanced societies is generally a good thing. But religion in backward, medieval societies can be very close to evil.
That's like saying that American is as bad as Nazi Germany because we execute prisoners just like the Nazis excuted Jewish prisoners. Ridiculous.
Second, while it is true that atrocities were committed in the name of Christ, it is simply historically imbalanced to speak of them as being among the greatest atrocities in history, because they simply were not. You can point to the Spanish Inquisition and the Crusades (which were essentially a defensive war against Moslem conquests), but even the number of victims of these events pale in comparison to other genocides and atrocities committed throughout history by various perpetrators.
Your point is well taken, however you have left one varaiable out of your reasoning. And that is, for a LONG time "the church" WAS both church and state...and during that time people did not have access to the Bible.(they weren't called the Dark Ages for nothing! and the medival church leaders knew that control over literacy and the distribution of the Bible equated to control over the "peasants") I argue that there were very few true Christians during the Dark Ages, and if there were, they were tortured/imprisoned/killed due to their opposition to the "Holy" Roman Empire.(the said medival society)