Hi, atpollard. Happy Holidays (albeit slightly belated).
I'm not sure I completely gather your point; are you saying that someone can go to Hell anyway despite honestly searching for the truth if they don't happen to arrive at the conclusion that a god exists? Wouldn't that be unfair to the person who sincerely tried to find the truth?
Actually, I can answer more directly:
No, I do not believe that can happen.
God does not employ some sliding standard of holiness (there is no close enough ... nobody is close enough).
God does not punish doubt or some random fate (like being born where the Gospel had never been preached).
I do not believe that it is possible to seek God, honestly, and not find Him.
I believe that All who seek, will find.
So the only option when you meet God at the gate of heaven is have you surrendered what you know of you to what you know of God?
If you have, then you are seeking him in faith and this will be a happy reunion between friends who have longed to be together.
If you have not, then this will be a final showdown between a creator and a being that has chosen a life of rebellion.
I believe that those rejected from God's presence will leave like they arrived, shaking their fist at God.
However, as I have already beat to death, hell was never God's choice for anyone.
The choice to sin, to resist God, to fight God with our last breath, has always been ours.