This is a deep topic. First, God is not the author of evil [James 1:13, Ezekiel 33:10-11]. You can read through Genesis 2-3 to get a good idea of why we're separated from God in the first place. God doesn't owe us forgiveness- as Creator he has every right not to save anyone. It's out of His grace that forgiveness/reconciliation is offered. A lot of people have trouble with the idea of a God who punishes/will punish their wrongdoings, but the central message of the Bible (back to that Ezekiel reference agin) is that God saves us *because He loves us* and that we are saved not simply from our own evil, but from *His just wrath*.
How then is God a just judge, if He both promises to judge evil and refrains from punishing those who are forgiven? Their punishment is poured out on Jesus instead. That's the Gospel. He died willingly so that they can have life. If you believe, this is for you too.
The problem isn't with the scriptures, it's with Christian interpretation of the scriptures. Anyone with any sort of knowledge of the Bible and the history of the people of the region knows that the god of the Bible was (a) part of a pantheon, (b) that was inherited from other cultures, and (c) evolved as time went on. That's not really up for debate with any serious students of history and religion.
The old testament biblical "God" at the time that Genesis was written was NOT perfect, and nobody believed him to be that way. That came later.
The Adam and Eve story just looked to tell a creation myth, and Genesis itself was cobbled together from multiple storytellers. It didn't say a single thing about damnation, which wouldn't even become a thing until Judea's hellenistic period.
So, nah. You seriously are out of your element here with all the blinders you've put up for yourself.
How then is God a just judge, if He both promises to judge evil and refrains from punishing those who are forgiven? Their punishment is poured out on Jesus instead. That's the Gospel. He died willingly so that they can have life. If you believe, this is for you too.