My emphasis:
Agreed.
Why do you think that is? I'm guessing it was because Tolkien was a Christian and Christians see the world as "Good verse Evil." I'm going to deviate here, but
I never understood how Lucifer was determined "evil."
So he rebelled against God? Granted, starting a war wasn't exactly "good" but he was just fighting for what he believed in, which isn't a wrong, at least compared to other reasons why war starts. And if that was the reason he was dubbed evil, than Americans are no better for gaining independence from England.
Well, just approaching Lucifer as a character in a story (so not to introduce an actual theological debate here) ... aren't you removing Lucifer from the defined context there?
If God is the creator of the universe (again, in the context of the story you're borrowing lucifer / satan from, the Judeo-Christian story) then rebellion against God would be an upsetting of the proposed natural order (and Divine order) of the Universe.
In some scientific writing about the origins of the Universe, we hear talk about how precise the physics and Laws of Nature are attuned: if gravity (one of many examples is gravity) were a fraction weaker or stronger, stars could not form, life could not arise, and the Universe would be ... a chaos, a never-was, a hell of hot or cold.
In the lucifer/satan story, it's GOD who creates and sustains EVERYTHING;
rebellion against God's "divine order" wrecks Creation itself (as Man's Fall and Sin supposedly perverts and pollutes all nature)
In that story, lucifer/satan's motive is Ego and powerlust ...
We might as well say that a Hitler (not
the Hitler, since we shan't bring up hitler or nazis here) is no villain because he is merely following his "beliefs" in some noble cause (to free the Aryan world from the influences of this or that "evil" race or culture, in his madness and bigotry)
We might as well say that a sociopath's rebellion from society's "rules" is noble and good: for isn't he heroically fighting for his own freedom and self-expression?
My point is (or my suggestion is): if we take lucifer/satan in the context of the Judeo-Christian story ... we must take him as Evil.
It is well and good to create one's OWN characters, in one's OWN story or theology (we're discussing it all here) but lucifer/satan is already written, and he is written as Evil.
Satan's "belief" or "individuality" or "freedom" are seen as being destructive and perverting to the Perfection of God and God's Creation, and OUR place in it.
No doubt the Bubonic Plague germs adore the plague rat and their own invasion and disease-infestation of human beings; perhaps Plague is not morally "Evil" in itself.
But do we (as humans) "understand" that Plague is a "bad" thing? it may have some unintended "positive" consequences (easing overpopulation and the rise of the value of the Individual in European serfdom, to be ironic) but ... it destroys.
lucifer/satan too destroys. We can of course IMAGINE and ADD TO the Judeo-Christian story, to give Evil some dark nobility ... but we have then made a new fiction up.