"In that case, over a billion people have died in the name of one religion or another, due to anything from the Salem witch trials to improper medical practices based on faith healing to anyone claiming divine inspiration or divine authority starting a war for any reason. This includes Hitler, just so you know."

Like hell. If you think Hitler did what he did for religion and not for his moronic racial ideology, you're out of your mind. Gonna need a source for that number. You assume that in the absence of religion these wars would have never happened. Remember, church and state were the same. How much was done in the name of the church by the state, and how often was what the state wanted what the religion subsequently endorsed? Like the Franco-Ottoman alliance or Carolingian attempts to make an alliance with the Abbasids. The secular government dictated to religion, RARELY vice versa, and when that did happen, it was the pope maintaining his secular power.