Yep. Written by Bilbo and Frodo, who probably were pacifist etc. and as they were clearly tools of the Elves and the 'Wise' would think that they were lovely too.
You're arguing backwards from your preconceived conclusion, not forwards from the evidence.
Not to mention the idea of a species not having a capacity for co-existence is one we'd find suspicious in historical parallels.
That you find it suspicious is part of your map, not of the territory under discussion.
And don't forget totalitarianism and racial hierachies amongst humans.
Totalitarianism? If you mean Aragorn's kingship, his monarchy seems far from a totalitarian regime.
And I never argued the culture that created it was an anti-racist one. If you want to argue that the in-universe culture that created LOTR was a racist one, you'd certainly find much greater evidence for that than you'd find for it being a propagandist's tool against a supposedly peaceful and freedom-loving Mordor.
In fact Tolkien himself (outside the text) mentioned one such point: the idea that the Rohirrim were genetically connected to the Dunedain from way back was spoken by Faramir, but was "in reality" a piece of propaganda -- meant to assuage Dunedain racial pride for having given away such a large portion of their former lands. In "reality" the true racially-related-to-Gondor people were the "bad" Dunlendings, which had allied themselves with Saruman.
And you could imagine points where the Elves are e.g. portrayed better than they were, because the Queen was elvish, and so the King and his heirs needed a propaganda tool to make his people think better of elves.
The book is from a hobbits-eye-view. That's quite explicit. I'm not sure why bringing it up would be pushing for a preconceived conclusion, and I think it's more helpful than treating a text as the product of an undefined 'people', given it refers to events involving many different races and nations who are portrayed as significantly different from each other.
But to take back to the context of this, for a fanfic what's important is plausibility, and so rationalisation of a kind is actually fine: the point is whether you can tell a consistent story wherein ...
This may be old news to some people, especially the Russian speakers, but I didn't see an article about it here.
In 1999, Kirill Yeskov, a Russian paleontologist, wrote The Last Ringbearer, a 270-page take on Lord of the Rings from the point of view of a medic in Mordor's dying armies who is also a "skeptic and a rationalist." In fact, Mordor represents the forces of reason in this retelling of the story. As a Nazgúl (himself a former mathematician) explains, Mordor is "the little oasis of Reason in which your light-minded civilization had so comfortably nestled." Barad-dur is "that amazing city of alchemists and poets, mechanics and astronomers, philosophers and physicians, the heart of the only civilization in Middle-earth to bet on rational knowledge and bravely pitch its barely adolescent technology against ancient magic."
The story has been newly translated and is available in free PDF form -- in English and the original Russian. There's a recent review from Salon as well.