You said that faith can be a dangerous thing and I quite agree with that.Maybe you could elaborate, I'm not sure I understand your question.
However, you obviously had in mind only faith in religious doctrines and not the faith in scientific doctrines as well.
The answer that the scientific consensus has for my question: What do you think of the gods of our ancestors (meaning the ancestors of humanity in general) who were described as common human beings lacking all the divine attributes of the modern gods?, is: they were the product of an immemorial imagination (J. Cambell, Primitive Mythology, Prologue, p.4).
Campbell begun and finished his study on primitive mythology, i.e. on the origin of the idea of existence of gods, believing firmly in his preconception of the immemorial imagination. Thus what we know of those archaic gods is based on belief and not on reason.
Anyone who will take a serious interest in myths will soon realize, as Campbell wrote, that an honest comparison immediately reveals that all have been built from one fund of mythological motifs, meaning that the Native Americans who had been separated from the rest of the humanity for approximately 14,000 years, are telling the same stories about gods as everybody else.
I hope that this time I made clear what I mean and that you will choose to answer the question.