From the MLP comics, the very first story arc haunts me to this day. I feel the artists deliberately dehumanized a race of innocent kitties. I don't think they meant us to feel bad about the (possible) genocide. I don't see how the writing fits any message of friendship.

I hate to think that most bronies don't care about the kitties. I fear I might be nearly alone.

If that's the case, then I ask, how would the fandom feel if the kitties had worn pink triangles and said "love is love"? Would those fans despise the apparent mockery of homosexuals?

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I wish that this story arc would be officially disowned. If I'm not mistaken, the developments in Season 6 effectively discard that arc from the canon. Even so, I wish it would be made official.

Otherwise, I wish there would be a follow-up where the reformed changelings are forced face to face with their true dark past. In the process, they must make up for what they did to that race of innocent kitties.

I'm thinking something like this:

A mysterious race of monsters is attacking Equestria. As Thorax and Pharynx figure out, it’s the kitties the changelings had preyed on. With all love sucked out of them, they have become monstrous shadows of their former selves. And they mistake the ponies for the changelings.

With the Mane 6 down for the count, the reformed changelings must save the day. The kitties are possessed by a literal spirit of hate, seeking to consume everycreature it can. The changelings cannot fight fire with fire. The evil spirit can be defeated only by breaking the cycle of hate.

The changelings are led by Spike, Thorax, Pharynx, and Ocellus. In this case, the Elements of Harmony are not enough (including the Pillars and the Student 6). Instead, love itself must overcome this literal embodiment of hate.

As Spike, Thorax, and Ocellus discover, the changelings must return the stolen love. They figure this out when seeking a path to forgiveness, finding the chance to reach out to a few kitties. Pharynx, meanwhile, must overcome his fear and cynicism.

The kitties are not as bothered by Spike, since he's a dragon. Therefore, Spike manages to advocate for the changelings -- explaining how he made friends with them. For the kitties to receive the changelings' love, they must let down their defenses -- and so must the changelings.