If the squid were allowed to win, they would run rampant, extend their reach to orcas, sharks, dolphins, rays, turtles. No creature would be safe from their mind-taking. Every creature would be in danger. Protecting the whales, fighting the squid—you're the only one who can stop it.
There's a small voice in the back of your mind: Is it really so easy to pick sides like this? Would the squid really do that, or would they just be content to live their lives in peace? Maybe that's all they've ever wanted. Are you really so sure that you're on the right side of things? But your introspection is cut short as you are drawn back into the fight.
Your progress seems to have annoyed a nearby pair of squid, who adjust their course to go after you. You look around for Estre to help, but he's struggling against a squid that's turning more aggressive than he anticipated, wrapping around his lower tail. Estre's trying to stab it with his trident, but the angle is working against him. It's a bit of a stalemate, but his position does leave him very open to a secondary attack.