I also remind you of the parable of the rich man in Sheol begging for a drop of water. If hell is not real, then where was he? I know there is some discussion that this place is not hell but a holding place until the final judgment. However regardless of what it is, it is a real place where the dead currently are.
God will treat every soul with perfect justice. No one will be able to find fault with it. You think perfect justice for some is eternal agony. I don’t know where that idea of justice comes from but it doesn’t come from Heaven.