Shadow is a force of nature? The evidence is that darkness directly opposes nature. Both Light and Order are created by the Gods and Darkness has been proved to directly oppose both forces. Therefore, Shadow cannot be a creation of the Gods or it must be totally unrelated to Darkness.
Darkness is merely the absence of light. It is not evil. It does not oppose anything; it's certainly not a sentient force working to bring down the goddesses!
He's not completely human; his soul is that of the demon.
What? How do you work that out? He's just a thief who gets lucky and takes the triforce. Does teh world of Zelda even have "demons" in the traditional sense?
You need to understand that humanity is being defined by the body as well as as the soul and that there is no direct transition from just "complete human" to "complete demon". Ganondorf in TWW had already become "the devil" but he still thought about his homeland, the emotions of that situation, which shows he had not lost all of his humanity.
Zelda doesn't have a devil, or at least we've never been told of one.
Ganon is not just a human who becomes evil with power, he is the actual key to Hyrule's destruction. Whenever evil is revived, it is always through him.
No;
any unworthy force who obtains the triforce will trigger the Prophecy of the Great Cataclysm. Ganon's the only one we've seen do this in games, but that doesn't mean he's the only one who is capable of it, or who has in events we're not shown. In any case, it's still argued by some that we see different people called Ganon in some games.
We know that both light and order are creations of the Gods. We know that darkness wants to destroy order and is repelled by the light.
Um, no... Darkness doesn't want anything! It's incapable of thought!
In other words, the power of the darkness is the opposite to everything that the Gods stand for. Reading the text again, I'll grant you that the use of the term "chaos" does not appear in LoZ's intro. However, if there is an opposite to order, it would have existed from the very beginning of time, as chaos. If darkness is against the light and seeks to destroy the order, then we can infer that it is chaos in a physical/metaphorical form.
As long as darkness existed since the beginning of time, the embodiment of darkness existed, which is Ganon. He is the incarnation of darkness.
The Zelda goddesses don't stand for anything. They came, created a bunch of stuff, and left again. They sent a few oracles, and flooded the world. That's about all we know of them. Yes, Nayru created the laws that govern the world, including light and so on - but also including chaos, which is merely the rules working so complexly that it's hard to see how.
Ganon is not the incarnation of darkness. He's just a man. Darkness doesn't have an embodiment.
Hardly, you're trying to tell me that Ganondorf didn't have unnatural power as a Gerudo thief when it is the only sensible explanation of events before he took the Triforce of Power.
He's got powerful magic, certainly. But why not? There are lots of powerful magicians in Zelda. Elzo was probably even more powerful than Ganon, since he created a cap that could emulate the triforce.
