Why do people struggle with the idea that those who never heard the gospel are condemned?
People struggle because they cannot comprehend a righteous God condemning those in spiritually dark places like the Amazon Valley who have never heard the gospel to an eternal lake of fire. Yet Scripture indicates every man receives the light and a certain amount of knowledge, though the mechanism cannot be fully explained.
Les explains that many get hung up when they realize folk down in the Amazon Valley and other spiritually dark places have never heard the gospel, and they cannot comprehend a righteous God sending them to an eternal lake of fire. But the book says over and over that for some reason or other they have received the light; they have a certain amount of knowledge. John 1:7 says John the Baptist came for a witness to bear witness of the light, that all men through him might believe. John 1:9 says the true light lighteth every man. Les says he cannot explain it, but that is what the book says.