Matewis: That's very interesting. I wonder if his struggle was really for those reasons? Perhaps it was more philosophical instead?
I think it must be at least partially that. He is on record stating, among other things
">in response to someone's assesment that Middle-earth corresponds spiritually to Nordic Europe<
Not Nordic, please! A word I personally dislike; it is associated, though of French origin, with racialist theories."
and
"I have in this War a burning private grudge – which would probably make me a better soldier at 49 than I was at 22: against that ruddy little ignoramus Adolf Hitler [...] Ruining, perverting, misapplying, and making for ever accursed, that noble northern spirit, a supreme contribution to Europe, which I have ever loved, and tried to present in its true light"
so it's clear he cared about the issue a lot.
Matewis: The conundrum Tolkien found himself in starts to make sense then the more I think of it. He could've solved the issue of cannon fodder by making the enemy's foot soldiers a bunch of impersonal monsters, but then that might've made their threat too abstract in the books to be effective. Or perhaps not :\
It just wouldn't work, as he surely realised early on - there's too much in the books that relies on the orcs, however despicable they are, having free will and personalities, often contrasting ones. There can be in-fighting, they can get drunk, be negligent etc. Most importantly, they have to be able to feel fear - the corrupting nature of fear, and of using fear as means of control, is one of the most important themes in Tolkien's books. It's crucial that Melkor's minions be not mindless automatons, but living beings enslaved through fear.
Matewis: and yes, dragons are cool :) Though one of his iirc is just absurdly massive. Forgot which one. Ancalagon according to google.
Yep, Ancalagon the Black. Though I think his size is usually exaggerated by artists. In the book, though surely he is huge, I don't think his size is ever exactly given, and the idea of him being so humongous comes from the line that describes him destroying mountains as he fell, but I think that could imply more about the force of the impact than his sheer size (he was fighting gods after all). Anyway, at that point everything needed to be dialed up to 11, the battle had to be big enough to destroy a continent and explain why the Valar would never again personally go to war in the mortal lands (sending disguised agents like the wizards instead).