Knowing the people who are supposed to be in hell, by now the place is air conditioned, has perfect WiFi, better universities than any found on earth, massive libraries, unparalleled museums, and advances in science and technology far beyond what we have. There does seem to be a high percentage of doubters and outright unbelievers among people who are creative or have a scientific bent.
Plus, look at the behavior of the one who is supposed to be the "good guy" in the spiritual realm. His repertoire for dealing with misbehaving humans is to smite, curse, and kill them. His "unconditional" love comes with the condition "love me or I'll make sure you are tortured forever." If he was a human parent, his children would be in foster care. If he was a human demanding love in such a fashion, he'd be branded a stalker and have a restraining order placed on him. God's body count in the Bible runs in the millions. The only side of the story we have is what God supposedly inspired humans to write - and even in that version he comes off as a petty, despotic, dictator with just enough tiny flashes of kindness and mercy to give someone Stockholm syndrome.