G'raha is - much like Venat - conveniently written to be utterly obsessed with the player character, to an often unsettling degree at times. Ultimately, though, it's another case of protagonist centered morality. It benefits him to callously sacrifice a world he quickly writes off as 'doomed' but we know from his own words that there were those opposed to his decision. You know, people with loved ones who had survived considerable trauma but still had the drive to fight and continue to live each new day.

Which is where the dehumanisation comes into play again. 'Those people needed to die. They were doomed. They were a necessary, unfortunate sacrifice.' Your quotes, not mine.

It'd be easier to buy if the same people touting such were willing to apply that to the game's protagonists though as we know from previous 'discussions' a number of the regulars here are fiercely opposed to any of the protagonists being held accountable for anything of note, criticised for their shadier actions or let alone killed off even in a 'necessary' sacrifice.

With the way in which the protagonists are written they come across as malicious sociopaths possessed of numerous dark triad personality traits who are only in it for themselves and their favoured as well as anyone who will call them a 'hero'. It's probably not entirely intentional but the damage is done the moment a story begins framing the deliberate destruction of entire species, worlds and innocents as 'necessary.'

Which once again brings us right back to the whole 'some of you spent years arguing that there was never, ever an excuse for such things until the point where it was the protagonists having a hand in such acts!

...and so the circle continues to spin.