I think you need to be ruthless with your story for the sake of the logline, and tell us who the protagonist is going to be, and what their goal is through the story. At the moment there are two different protagonists (which makes for an unfocused logline), and two different goals (which makes it difficult to picture what sort of film this is likely to be.)
If the focus is "magical races as allegory for interracial marriage", then we need to know what the protagonist is doing to overcome the prejudices, as well as what the stakes of failure to do so are.
If the focus is the battle, and love story is secondary, or a backdrop to it, then you need to be clearer on the goal and stakes of that side of the story.