@aFFi Think just pure revenge would get boring faster than an actual plot. Of course things would have had to swing somewhere because the whole story of the revenge happened in the past, we only saw it as a flashback which means attachment won't last that long.
Why cant there just be one manga where the MCs rage consumes them without this "You can change" or "Don't be evil" BS like fuck that shit just let me see people get annihilated for no reason
On top of that this guy has been letting his rage consume him for ten years, and all it takes is "don't be bad I can help you" to quell his anger? Come on
"Humanity can't prosper with the witches around..." What kind twisted logic did the king pull out of his ass to justify a genocide against all witches?! I just want the MC to massacre that whole society :[
@Gandalfr
Peace and safety give people no reason to move forward and actually accomplish anything. If there are no threats, no land to conquer or enemy to fight, no grand dream to strive for, a nation would very soon fall into ruin and decay.
Not to say the bad guys aren't awfully stereotypical because they are, and much too obtuse to actually justify this whole plot. Nevertheless the base reasoning is not totally unfounded.