One of the responses to presentations about Christ’s forgiveness is, “What about my [father, mother, relative, jungle-dwelling aborigine in Africa]? Are you saying they’re going to Hell?”
First off, I’d never assert anyone is “going to Hell.” That’s for God to decide, and though I believe I have a good grasp on what He wants me to know, I’d never pretend I know the full Will of God. He’s infinite, and I am not.
Second, that argument doesn’t hold water. If you had a relative who went down on the Titanic, would you throw yourself into the sea simply because they drowned? No.
Jesus said, “Let the dead bury the dead,” toward the end of Luke 9. You need to think about the living, not evaluate those who came (and went) in times past.
The Good News is that the war of Good vs. Evil is over. God won before it even started. The decision you have to make is do you want eternal reward or eternal punishment?