A theory with strong emperical basis as opposed to a myth with nothing at all but conjecture.
Incorrect. Two theories with the same empirical evidence and vastly differing premises about the outset—and consequences.
Both are theories.
Both are faiths, because either way one must believe in it as a first principle and one’s weltanschaung (worldview) follows, and/or precedes.
Faith in the one unscientifically proven premise of origins leads to purpose and hope and led to the founding of America for the free exercise of such faith.
Faith in the other unscientifically proven premise of origins has been epitomized in totalitarian regimes that have outlawed God, regarded man as supreme sovereign and slaughtered a hundred million, plus abortions.