This brings up a curious point: Who was the first theist. Who invented the "magic man" hypothesis? Did they believe this hypothesis? They could not have been proselyted if they were the first. Why did they believe it, if they had no proof?* How did they come up with it, if there was no previous evidence of the magic man to spark the idea of a magic man?? There must have been some kind of evidence of a magic man, with no viable explanation (at the time).
And no "fire hot" is not evidence. Any fucking moron would realize rubbing two things together makes them hot, because, contrary to popular believe, pretty much anything can be rubbed together. Had they started trying to rub things, they would quickly discover why "fire hot".