>The Bible was explicit law in the history of many countries. Non-practitioners were considered second class citizens.
This is true for not just Christianity but also Islam(see Suni/Shia split, treatment of Christians and Jews under Islamic rule) and Buddhists(Key quote from wiki: "However, Buddhists have historically used scriptures to justify violence or form exceptions to commit violence for various reasons." https://en.wikipedia.org/wiki/Buddhism_and_violence).
I would say that if you take "Catcher in the Rye" expand upon it you could get a following that reaches the same level as the Bible and have fanatics that will use it's message for justification for violence.
Look at the Hutu/Tutsi conflict, this is not based on religion but still has the same dehumanizing going on.
In the US, there have been several 'feuds' that have members of one family killing another over slights, the Hatfield-McCoy being the most famous.
All it takes is a slight difference to separate groups of people, for example going to a different school.
"The Carolina fans that week were carrying around a poster with the image of a tiger with a gamecock standing on top of it, holding the tiger's tail as if he was steering the tiger by the tail," Jay McCormick said. "Naturally, the Clemson guys didn't take too kindly to that, and on Wednesday and again on Thursday, there were sporadic fistfights involving brass knuckles and other objects and so forth, some of which resulted, according to the newspapers, in blood being spilled and persons having to seek medical assistance. After the game on Thursday, the Clemson guys frankly told the Carolina students that if you bring this poster, which is insulting to us, to the big parade on Friday, you're going to be in trouble. And naturally, of course, the Carolina students brought the poster to the parade. If you give someone an ultimatum and they are your rival, they're going to do exactly what you told them not to do.
https://en.wikipedia.org/wiki/Clemson%E2%80%93South_Carolina...