God pours out His wrath against sinners, as we see in the Flood and on the day of judgment as described by Jesus and Revelation (and Paul mentions God's wrath in Romans 1). But why? What's so bad about sin? Because it alienates us from God? How does sin do that? When a child makes a mistake, does their loving parent disown them, or correct their behavior?
If God is in control, then it's up to God whether we are alienated from Him or not. Even the New Testament depicts Jesus as eating and drinking with sinners, because just as the doctor comes for the sick, not the healthy, so does God come for the unrighteous, not the righteous (Mark 2:17). Far from pushing God away, our sin should draw God all the closer to us! That's when we need God the most, and a loving God would recognize that.
Maybe God pours out His wrath against sin because of how bad sin is, because of the pain and death that sin causes. But that demands the question: What greater source of pain than hell? If causing pain is so bad, then hell, the greatest pains with the greatest duration, is the worst evil (see David Lewis, "Divine Evil").
Jesus and Revelation paint a picture that forgiveness is impossible for the damned. Why? Either the damned are incapable of asking for forgiveness, in which case their free will has been robbed (and so the Christian cannot appeal to free will to defend the justice of hell or God's hiddenness), or they can ask for forgiveness but God refuses it, in which case God is not perfectly forgiving.