Christ himself said it was the sinner that needed him not the righteous. It is the repentant sinner that Christ and God love. The parable of the prodigal son reveals one of Christ's meanings.
I am not asking about other passages where conditional terms are used. There are no conditional terms in Romans 5:8. There is an explicit, unconditional statement that God proved his love for us by Christ dying for us while we were still sinners. The core point of that passage, the proof of God’s love, is lost if the thing that proved it (us still being sinners when Christ died for us) is taken away. Dragging in conditionals from other texts doesn’t solve this puzzle, at least not for me. This is a clear statement that God loved sinners, and proved it in the death of Christ. Do you have a way of reconciling that clear teaching with the other passages on which you are relying?