I like the author, this is not a critic on his writting or trying to say it's okay to make this dumbass redeemable
The flashbacks seem more to try to put Raloud up, as someone who is willing to save anyone.
This will sound preachy, allow me this moment (especially since I am not a believer)--but I like how Jesus was willing to forgive people and save those who truly sought out to be saved by confessing their sins and asking to be given a chance to redeem themselves. Not to compare Raloud with Jesus, but the parable of the stories from Jesus is that we must be willing to forgive and help others redeem themselves. I am quite a bit of a pessimist, but I admire those that are willing to help others become better and we knows this is possible even their "sins" are heavy. That's Gheer, here, and Raloud is embodying this message. I still think Raloud is a fool--given Gheer has yet to show any remorse, but instead double down on his problems, Raloud is ignoring all of that.
I guess another story that puts on some contexts on how Raloud sees Gheer could be story of Antigone, and the Divine law vs Man law. Antigone's brother, Polynices, is a traitor to his King and kingdom after raising an army against it. Antigone went against the orders of the King (to let Polynices body rot and eaten by crows in the open field) and gave her brother a proper burial, because ties of family are Divine, while orders of a Kind and only a man's words. Antigone is severely punished. but her actions are presented as honorable and admireable in the play. Raloud sees Gheer as a true brother, maybe not by blood, but by spirit, and he thinks that this bond is Divine and he must ALWAYS help his family, even when the world around them (a world of Man) looks at Gheer like a traitor and a criminal that deserves the worst.
All in all, Gheer is not redeemable, not because he has done bad. But because he has yet to do anything for the good of others (since the death of his mother), and because he has yet to admit his wrong-doings and asked to be given a chance to be better and be sincere about it. But I like the other messages that talk about Raloud's personality and ideals, more than whether Gheer should be saved or be allowed to redeem himself.