I think the reason many don't believe, is that it seems contradictory to put a finite "face" on an infinite (state of) being. I doubt that "non-believers" are as doomed as some might think just because they don't believe in a word.
As for faith, there isn't anyone posting on these boards that hasn't demonstrated their faith by their devotion to "beings" other than human.
Bucky Fuller said it well; "I seem to be a verb."
Deeds, not words, determine our worth.