Life is your one chance. You have to seek the truth to find it. After death it is too late.
Which is same as you have one chance to accept god, and you have to look into other points I mentioned again.
Here is what I mentioned earlier slightly modified for you .
God has mercy on people who didn't do sin or lived good life. yet we all are born sinners, we all have greed, nobody need to teach us to lie. Only way to get rid of your sin is by salvation/saving (if you agree on we are desentens of adam and eve then you must agree on being sinner) and since no one have to teach us to do sin you have to agree on we are sinners.
If we are sinners then you must agree on no one goes to heaven with sin.
If you agree on no one goes to heaven with sin or without knowing Christ and have to seek the truth to find it.
Then I can't seek to find a truth if I don't even know if it is exists.(Simple example is you mentioned once before I must be stupid, since i cannot spell and I am in bottom 2% of world when it comes to IQ. You didn't know, bottom 2% people are officially counted as mentally challenged or mentally deformed. by saying that you showed that you didn't know the truth and you didn't seek the truth. it might be true, it might not until you know it for sure. If you think i am stupid then you wouldn't be replying to messages I have sent, cause a stupid will drag you to his level and beat you there. If you think I am not stupid then the messages I have sent must have made some sense for you to reply. ).
If you agree on seeking the truth to find it, then you have to agree you can seek for the truth only if you know it exists or there is something to seek. For those who didn't know Christ exist, they don't have anything to seek since it is not the truth for those who didn't know about him (Fact is there are people who don't beleive in man landed on moon as well no other human race exist and so on.)
If all falls into place and there are people who didn't know christianity exists or Christ exist. If they don't know then they can't seek the truth.
Man I am getting tired. This is the first time I have been in discussion since 1992. In my life all I knew was christianity until I started learning about other branches.
Just a simple logic. But like overanalyzer mentioned we cannot discuess GOD in just simple logic, but we could try to explain someone by simple logic. Maybe in your term I might be wrong, but yet I have facts from real world and Bible.