I think what you call God people call a great many things. Your perspective is based on monotheism - more than likely Judeo-Christian/Muslim ideologies, known as "the big 3." To me, as an atheist, that's not wrong or right. It's personal.
I myself have experienced things that I can not describe. From my perspective, it is similar to my ancestors who gave thunder a god because they didn't understand the concept behind weather patterns. I don't know what causes or caused my experiences. For instance, if trauma can be inherited, why not memories? Could my experience of ghosts be scientifically explained as a genetically passed down memory? I don't know. But I personally find it much more fascinating to say that I don't know than to offer these experiences to an already formed concept. Science to me is not the antithesis of magic but rather the research of it.

As for the idea of having to back up concepts like worldwide revolution or your personal religious feelings, it depends on what you're saying. If you're saying "I know this for a fact, you need to accept it," then you should have to back it up. But if you're saying "I really hope and feel deep within myself that people will rise," all I would say is great! And I hope that your hope manifests itself in actions to support that idea.
As for gods, as long as you don't demand that anyone prescribe to your ideology, I say it is everyone's right to believe in any deity or deities they like. Again, what you call god, someone else might call the great spirit or what have you. I might even call it the as-of-yet-undiscovered science :)
Ultimately, why look for reasons to argue when no damage is being done? The only thing I caution myself and others over is to not let hope become a blind optimism that keeps us from fighting and actively working to create the future we dream of.