Hell no. Yes, the WG can never be trusted. But he's betraying his entire heritage.
He can try to suit & tie it all he wants, he's still a Giant. Their warrior mindset shows in every facet of their life.
He couldve, idk, arrested that thug Giant. Instead he beat him past unconsciousness, destroying part of that town
He could've sawed off his horns & presented them formally. Instead, he ripped them off & presented them through blood-stained vision
Also, it's very premature to seek peace the world over when there's work to be done in his own country. Maybe work on the prejudice Ida faced from her own race.