In a futuristic crime-free world, self-regulated by an omnipotent social media structure, an introspective policeman, re-purposed to chase down individuals who have not met minimum popularity standards, becomes disillusioned with is role and starts a quest for a mystic island where citizen live free from digital coercion.

Hmm.? The quest seems non-heroic.? The purpose of the quest in myth and drama is not to flee from the woes of the world, but to find a remedy.

“The hero ventures forth from the world of common day into a region of supernatural; fabulous forces are there encountered and a decisive victory is won; the hero comes back from this mysterious adventure with the power to bestow boons on his fellow man.”? –Joseph Campbell (The Hero with a 1,000 Faces, p 30)

fwiw

I like the idea of a? cop who executes warrants for the arrest of people whose total social media scores are too low.? (Although what happens to them: must they do time in social media? re-education/rehabilitation prisons? How far have you worked through the implications of your premise, fleshed out the story world?? Maybe he could be a “re-educator” rather than a cop?)

Whatever, the? story arc entailed in your premise seems to be that the protagonist should go from being an enforcer in this not-so-brave new world into a rebel, from being a persecutor of the downtrodden to a palladin.