Yes, it's fiction, but the comment you were replying to mentions Alan Moore's foreword to his work where he mentions the context in which he created the comic -- and that context was the despair and hopelessness he felt in the UK of the 70s and 80s.
Alan Moore is talking about the reality that inspired his fiction (and in fact, mentions how his fiction fell short of what actually happened next).
> I'm not too sure how important V for whatevs is. It's a story.
"V for whatevs"? You are being needlessly dismissive. Alan Moore is a highly influential and political comics book author whose work has a lot to say about the 70s and 80s. Just like punk was also a reflection and a product of its era.