The history of the Giants is deeply problematic, they were involved in the genocide of Tenryubito thousands of years ago and still celebrate it to this day.
Did you know they have a school in Elbaf? The walrus school. Where they teach their children of the horrible things Nika has done to our people. To worship him as a god, and proudly remember their part in Joyboy's war mongering. It's disgusting, they're like worms.
In a land like that, even the children are soldiers, raised to hate the celestial dragons and world government from the cradle. Saint Summers from the holy knights has been given explicit orders that there are no non combatants in Elbaf. The children and elderly are to be treated as if they were the accursed terrorist Fisher Tiger himself. So decree the Gods of Mariejois. Any who disagree or dissent shall be arrested for anti-tenryubitoic sentiment and sent to Impel Down.