My complaint is that is either a euphemism for autistic (in which case, just say autistic- if that feel "Squicky", re-evaluate your statement), or it is so vague as to lose all meaning- someone with bi-polar disorder is non-neurotypical, but is no more likely to have made these than anyone else.

If you do mean specifically autistic, you may want to broaden your understanding of autism. Autism is not standard, it can present in many, many ways, including many that would not create this type of image. The images are indicative of a poor grasp of humor, and a poor grasp of the original subject matter, but I do not see a higher probability for an autistic person to create these against the general population.