Hope as a deliberate act
Hopepunk's foundational claim is that hope is not a feeling but a choice — the deliberate decision to act as if better is possible even when the evidence for better is not overwhelming. Writing hopepunk as a deliberate act rather than a default state requires establishing why the choice is hard: the specific reasons for cynicism and despair that the hopepunk protagonist must act against. The world should give the protagonist real reasons to stop caring, to stop trying, to accept that things cannot be better, and the protagonist should feel the weight of those reasons while choosing to act anyway. Hope that exists in the absence of genuine difficulty is not hopepunk but optimism; hopepunk is what you do when optimism has become impossible but you act as if it hasn't.