Ok--wow--if you submit that the theory of macro-evolution has nothing to do with how life began, then we are on two different playing fields.
My studies are fairly extensive on the issue of ID. I have never heard a scientist who claims that Darwin's theory is not a theory of the origin of life.
The very title of Darwin's book says exactly what his theory is about...Origin of Species. According to Webster's, "Origin" means--The point at which something comes into existence or from which it derives or is derived.
Therefore, this means he is giving his theory of--"the point at which "species" (living things) came into existence.
I do not understand your thoughts that the two have nothing to do with each other. But, I do believe this is where we are going astray on our debate.
If you are arguing that evolution could be the means by which God decided to produce life, you can make that argument, but it is not Darwin's argument.