Not really a new thought, but I've been thinking that stars and stones refers to mortals becoming new versions of old deity (angelic to be precise) like how heros of old were supposed to go into the stars.. and those three, are the primary ones(though I believe there are five actually, from the scene in Changes when Harry becomes WK, five stars like a necklace on mother night) the reference of hate and love being the same force in opposite directions was a good example. (which I believe behind is hatred, not pain or fear. He projected hatred and self loathing in GS, it's the core of his essence) nemesis I think is something else, or something MORE maybe, still expect a 4th walker to show up... Though nemesis might qualify as despair instead. That's a thread most of her infected seem to share as well in the above list. They hit the end of the road on doubt and lost it. I've noticed the renditions of some deity also reflect the same traits. Molly becoming WL after being trained to use fear as a weapon for instance..
The swords and the walkers share a connection for sure though... It could be as simple as them being missing aspects of them. If love and hatred are the same force then the sword of love is missing part of what it should be. That part is manifesting with the walkers. Perhaps that aspect was literally killed off somehow and now they're trying to return. They seek to create/return to balance. The denarians are actually a false balance. They're there to take up the space nemesis tries to occupy. Beside repeating the same line as Nic does not surprise me. Nic is probably one of the only ones who know what the score really is on what the denarians do. They create mini apocalypti to prevent a build up in one spot.
Im starting to loose the thread right now so I'll cut myself off here and ramble on more later lol.