Perry: "We can see the forest is on fire. Every forest fire has an Ignitor. What is the Ignitor for this forest fire?"
Most sensible people: "We don't know yet, but there are several things we can think of: lightning, a camp fire, sun rays through a looking glass, a hot car exhaust, heat-producing bacteria...and probably processes we dont even know about now. Let's try and find out."
Perry: "It must be Prometheus because it says so in this cool ancient story I like!"
Some people need zero evidence to jump from a question to a very specific answer. Even when their answer isn't very logical at all. Or when all possible answers are far beyond our realm and current comprehension.
There is no arguing with (or against) that.