Because itās too peaceful and happy on the island. They thrive in chaos.
Many sympathize with him which is concerning... Like, it's so easy to make a rapist seem worthy of empathy apparently. His backstory at least explains why he did what he did so the author put some effort in making a character do shit things cause it makes sense why they do them, not just for the sake of doing bad things ( many forcefully put an antagonist just to forward the plot), but like, this is not meant to make the brother worthy of empathy or even to wish him peace. Bruh, the MC deserves peace
Why is everyone suddenly bringing up the brother