You did the math, or you looked at a funny little website that pushes your nonsense? If you grouped all Christians together you may be correct, but considering many of the killings were done against Catholics or Protestants, an argument is made that grouping them does not make sense.

My claim is just as valid as your claim that religion was the reason they killed those people. Looking at any claim that it was religion behind any mass Christian killings (ie crusades, witch trials, etc.) if you dont follow blind bs (which I can tell is hard for you) you will see an economic and political reason behind everything. For instance, women killed during the witch trials were widows who owned land. By killing them, one was able to take away the land from the women. So in a Christian state, as you pointed out for atheism, they killed anyone who was a threat to their power. They also killed Christians. So my basis is just as valid as your basis. Atheism has caused deaths, just like any religion has. Historical fact backs me up on this.