Normally, I wouldn't be this confrontational and expose my possible ignorance, but I have no idea what otherkin is, I don't understand it, and it seems really, really stupid. That's what I really think and feel; however, I'm open to being corrected.
It just seems so dumb. Nobody fits in, that is human. So I don't really understand. It seems so dumb. So, so, dumb. That it is ineffable. (And should remain so, instead of being labeled "otherkin") Again, I appologize for my ignorance, but I can't shake the feeling that this idea is utterly absurd. I can't take it seriously.
I value personal freedom, so, by all means, be, do, say, whatever that hurts no one, including but not limited to "not being human inside" but it is entirely baffling to me and fills me with a feeling something akin to disgust.
Also, please explain it. I only understand about it what I have gathered from inference, so my understanding is certainly based in ignorance, though, as soon as I heard about it, I feared that learning more would only intensify these feelings, which, though I wish they did not, certainly exist.
Basically, Otherkin are people that feel deep down that they are of a different species, common ones being dragon, fae, and elf. The ones that correspond to 'normal' animals (e.g. wolf) are usually called Therians.
The process called 'awakening' is when someone realizes they're Otherkin and what type of Otherkin they are. It's usually a slow process however.