Deadliest religion ever?

[SuperSentient]

First, I think this only applies to Islam. Second, it can easily be construed the way the radical's interpret it and only an extra-koran argument of "that was then" gets us to the more peaceful sects. So, if a religious writing is unclear exactly when violence is called for, I fault the religious writing. 

No, it applies to any religion. If someone is committing violent acts in the name of a religion, then it would be because of their religious beliefs that motivate them. If you belief in a religion with writings that may imply that violence is immoral, the person may also justify themselves in disagreement that the religion they hold to fully condemns their violence. 

How then can you say Christianity killed anyone?

People who have held to that religion killed people because of religious purposes, the religion itself doesn't kill anyone, but what makes something a religion is its followers that contain it and/or writings that propose it. 

So, by "deadliest religion", I mean religion with most violence and deaths in its name. If I practice Christianity and I am spiteful to someone else and decide to kill them in revenge, then no, that is not religious violence. However, if I murder people because they are homosexuals and use the bible and morality of God as the reason I am justified in this, then I am committing religious violence. Now, you try to make a point that someone may go against their religion but try to justify their actions with the religion, however, there are clearly ideological differences among religious people of the same religion concerning their religion, and to say that they are not part of the religion because they disagree with what you think is surely inaccurate to do. Same applies with religiously motivated violence.

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I'm working on a religion (okay, more a cult of personality), that will make these other religions humble in comparison to the bloodshed we will perform.  Though if it works those religions will cease to exist.

Any volunteers?

An atheistic humanist religion?