I once asked a Southern Baptist minister what would happen to a soul that had never heard of the gospels or the teachings of Christianity, on Judgement Day. The example that came to me was a tribesman from some primitive, remote culture. But there was also a question about all those millions of people who lived BCE. His reply was that they would go to heaven, if they had otherwise lived a good life. However, once they learned about Jesus, (say from a missionary), if they did not immediately accept his teachings, and if they did not accept them unquestioningly, they were going straight to Hell.

I would like to think this rather extreme position was due to the minister's ignorance of his own religion, rather than its official doctrine, but even so it tells you something about the mentality attracted to these beliefs.