A question about God and sin?

First of all, I'm an atheist.

Your question is not logically valid.

The question commits error of applying space-time categories to the infinite God. Foreknowledge = someone knowing something beforehand, that is, in the past. God cannot be considered to be conditioned by past, present or future because doing so will lead to temporalizing the eternity of God. God is not a temporal entity. The question itself is wrong. Therefor, and answer cannot be expected.

How can a person sin before they are born? God is aware of our imperfection and has made a provision for the forgiveness of sin - Christ ransom sacrifice. Anyone who exercise faith in the ransom can receive forgiveness.

being born in sin is not the fault of Adam and Eves offspring

God sent his son to save man from that sin

and that man could receive forgiveness if they are repentant for

intentional sins.

I knew I'd have mechanical problems with my car before I bought it. I bought it anyway.

God's tree of human life is written out, and those which are brought forth of it to bear good fruit will do so.

If you fear a sentence of sin, repent.

God does not know the fate of man, before he is born. He predestines no one to go to hell.

A Father knows his children will do wrong, but he still loves them and he disciplines them so they will grow up to be good people. God is no different with us.

It would have been nice if you mentioned Christianity as this is what they believe.

We reject this kind of illogical thing.