So many otherkin people jump to say that being otherkin doesn’t equate to mental illness. But then put in the tags “ableism” etc when an anti kin comments on their posts??? Wtf??? Where is your logic???
It depends on what exactly they’re saying, but usually it’s because antis assume that since we’re obviously delusional (false, we don’t fit the definition), we need to be locked up / sterilized / forced into “therapy”. Which is basically saying “I think you’re mentally ill for not having the same beliefs as me and I want your rights taken away and you kept away from me by force” and really, no matter how you spin that, is definite ableism. In the same way that “you wear pink so you’re gay so you should go to conversion therapy” is still homophobia, even if the person it is directed towards isn’t gay.
It depends entirely on what they’re saying, but it’s usually something like that. (If you have specific examples, I can probably explain them for you, if you’d like.)