Samael_Khan
Goosebender
This is true of Christianity also. If you were stranded on a desert island with only a copy of the Bible, you would not discover within its pages anything even remotely similar to modern Christianity. There were many variant forms of Christianity in the early days and even into the modern era.
True, but modern Christianity that I have come across allows people to leave with a figurative gun held to their head. It is not a modern doctrine to not even communicate with members who have left.