I started watching Tokyo Ghoul (yes, only now, I was just vaguely familiar with the concept before)
And the thing that sticks out most to me is that Ghouls can just. Eat corpses? They don't have to be alive, or freshly killed. They can just pick up a days-old corpse and munch on it
Meaning Ghouls aren't obligate predators. They're scavengers. They're hyenas.
All of human society has apparently spent centuries asking why Ghouls exist, and NO ONE came to the conclusion of "The same reason vultures do - to get rid of corpses, preventing disease and cleaning up the environment"
They could literally be vital to the ecosystem and instead of just letting them be normal humans with an admittedly disturbing, but very beneficial diet, saving up tons of landmass used for graveyards AND being better for the environment than both cremation and embalming, AND preventing senseless bloodshed by forcing them to kill to survive, people have just decided to war with them for literally no real reason
Like if every Ghoul had access to meat do you really think this would be an issue? Millions of people die every day, and there's seemingly more humans than Ghouls. AND Ghouls only need to eat once a month. There's literally plenty to go around, even if we require written consent, organ donor style.
Sure, Ghoul murders would still happen, but, like. So do regular murders.
And yes, that being said, humans saying "NO THAT'S GROSS/IMMORAL" for arbitrary religious and/or that-feels-bad-so-it's-bad reasons and just refusing to concede on an option that's safer, cheaper, easier and more humane is, admittedly, very realistic.
I'd be an environmental extremist Ghoul ally. That's all I'm saying.