No offense Mike, but you don't know what you're writing about. Religions do not "evolve". This distinction in Islam between those who do as the Koran instructs and thus rape, pillage and murder in the name of their religion, and those who are more moderate, has existed for I4 centuries. Whatever scenario you have constructed in your mind to support your world view of religions is irrelevant. This has been happening with one religion and one religion alone, for I4 centuries, events like the Crusades notwithstanding. Point of fact: the Crusades happened as result of just this sort of indiscriminate killing of Christians in the Middle east.
In the event you feel the need to push some sort of secular humanism into the discussion I would remind you that even given I4 centuries of bloodshed in the name of Islam, the biggest murders in history are still Hitler with 50 million kills, Stalin with 70 million kills, and Mao Tse Tung with I20 million kills; all of whom were atheists. It is not religion that makes people crazy; it is crazy people who sometimes act in the name of religion.