Exactly, it is no justice at all. God is Just.
Therefore, punishment must occur to any unrepentant person before annihilation in the lake of fire. (Luke 16)
Punishment must also be due to believers now if they do not repent of sinning until they repent, otherwise be lost forever--
1Co 11:30 For this cause many are weak and sickly among you, and many sleep.
1Co 11:31 For if we would judge ourselves, we should not be judged.
1Co 11:32 But when we are judged, we are chastened of the Lord, that we should not be condemned with the world.
Luk 12:47 And that servant, which knew his lord's will, and prepared not himself, neither did according to his will, shall be beaten with many stripes.
Luk 12:48 But he that knew not, and did commit things worthy of stripes, shall be beaten with few stripes. For unto whomsoever much is given, of him shall be much required: and to whom men have committed much, of him they will ask the more.
Mat 24:45 Who then is a faithful and wise servant, whom his lord hath made ruler over his household, to give them meat in due season?
Mat 24:46 Blessed is that servant, whom his lord when he cometh shall find so doing.
Mat 24:47 Verily I say unto you, That he shall make him ruler over all his goods.
Mat 24:48 But and if that evil servant shall say in his heart, My lord delayeth his coming;
Mat 24:49 And shall begin to smite his fellowservants, and to eat and drink with the drunken;
Mat 24:50 The lord of that servant shall come in a day when he looketh not for him, and in an hour that he is not aware of,
Mat 24:51 And shall cut him asunder, and appoint him his portion with the hypocrites: there shall be weeping and gnashing of teeth.