I’ve already commented on another post with the why and how the dwarves and elves might dislike one another. But to say the Elves would “genocide dwarves and enslave men” if they ruled Middle Earth (spoiler they did rule Middle Earth for a time and none of that occured) is blatantly wrong and antithetical to Tolkien’s work.
"Life was funny, and fickle, and often cruel. Sometimes the unworthy went on living, while those who deserved better was lost.
Or not lost, he considered, since they lingered on in the hearts of those who loved them, who love them still, their memory nurtured like a sprig of green in an otherwise desolate soul. Which was, he supposed, a kind of immortality, after all."
Thanks for sharing Saga!