The medical and neurodivergent communities are engaged in a persistent debate regarding the diagnostic boundaries of autism. At the heart of the issue is the question of whether the current 'spectrum' model is too inclusive, potentially diluting the clinical meaning of the diagnosis, or if it correctly identifies a diverse range of neurological differences that require support.

Proponents of a broader definition argue that the spectrum approach allows for better recognition of individuals who were previously overlooked, such as those with lower support needs or different presentation styles. They contend that shifting the focus toward individual needs rather than rigid diagnostic boxes provides better access to necessary resources and social understanding. Conversely, some clinicians and critics express concern that an overly expansive definition may lead to the over-medicalization of common human traits. They argue that if the definition becomes too broad, it may divert limited resources away from those with more profound, high-support needs who require intensive clinical intervention.

There is also a disagreement regarding the impact of self-identification versus formal clinical diagnosis. While some advocacy groups emphasize the validity of self-diagnosis as a tool for community belonging, others maintain that formal clinical assessment is essential for ensuring that support services are directed toward those with medically recognized disabilities. The tension remains between viewing autism as a distinct clinical condition requiring treatment and viewing it as a natural variation of human neurodiversity that requires societal accommodation.