And...
I believe those who never had a chance to make the decision are protected. I base this because children who die are supposed to go to Heaven. I don’t see why some tribe out in the middle of the Amazon jungle, who had never heard of Christ, would be treated any different. Perhaps everyone who was never given the chance is allowed to choose at Heaven’s gate.
One thing I noticed is that After God became Christ, he became more loving towards humans. The reasons, I believe, are because when he actually experiencing being a human, he got to feel what we feel. He got to experience just how hard it is to be a physical human being. He also got to connect to us on a personal level.