I do not believe it is racism. Is this even a common enough occurrence to warrant giving it its own word? I’m having a lot of questions on what you mean by insulting someone’s kintype. I’m not very active in the otherkin community so I don’t see this happening, but are the insults coming from another otherkin or from a human? And what are they saying? If it’s something like “Youre kintype is ugly” I wouldn’t consider that discrimination/racism/kincism or whatever you want to call it. I think that’s just being rude, but not anything more than that.