>>20753432Autism is not a spectrum of autistic -> normal, but rather of severely mentally disabled -> mildly mentally impaired, and the vast majority of humans do not fall anywhere within it.
People who have no disabilities in their reasoning or behavior, which is the bulk of those that practice philosophy, cannot be called autistic. Similarly, having a niche hobby or being enthusiastic about an unusual subject is completely unrelated to mental disability, and by extension autism.