But but but it's totally impossible!11one!
In that time, we only had simple single cell organisms. You just cherry picked some scientific facts. When the science says something that corroborates your faith, it is truth. When says something against, it is a conspiration, unreliable.
Why can't they make a game about hunting these fools down anyway?
What type of vampire hunting game would you prefer? Being a zealot vampire hunter in a zealot religious order? Being a werewolf? Both are the greatest vampire hunters in world of darkness. I doubt that you will be interested in mage : the ascension. If people complain about archwizards in D&D, I wonder how much they will complain about MTA archmages. What a ancient tremere can do with his blood sorcery is a tiny fraction of the power that the true magic holds in WoD. Is interesting that contrary to other places, in WoD, Werewolves > Vampires.
In fact, mages, humans with true faith, werewolves, abominations, demons(...) all are far stronger than vampires in WoD.