No I wouldn't A life is filled with many things, it's never pure "unrepentance".
And even if it were, that still doesn't address the issue of how it's "just" to have an eternal amount of punishment for, say, 50 years of "unrepentance". Maybe 50 years of punishment, perhaps, but not an infinite, unending amount for all eternity.
Furthermore, perhaps given another decade of life (or after the first decade of punishment), the "unrepentant" may well come to see the error of his earlier ways and achieve that instant of salvation which erases the rest -- where, then, is the justice in eternal punishment? There seems nothing "just" about that.
You can pour a finite amount of cream into a finite mug of coffee. But you have made an irreversible change in the cosmos. It's not so simple as saying that anything we do is finite. There are repurcussions.
Furthermore, perhaps given another decade of life (or after the first decade of punishment), the "unrepentant" may well come to see the error of his earlier ways and achieve that instant of salvation which erases the rest -- where, then, is the justice in eternal punishment? There seems nothing "just" about that.
Somehow I think God knows what He is doing. No one is in hell who "would have" been saved had he just lived a few years longer. Hell is for the unsaved. God is not shooting dice.
SD
The amount of time doesn't matter. I believe no one ever died before he would have repented. God gives us all we need to come to him. Some do. Some don't.