I agree with most of what you are saying. The DSM is just as made up and just as problematic, especially when it comes to behaviourally-based diagnoses like autism. These diagnoses are rife with clinician bias, among other issues, many of which I have addressed in previous writings.

If someone is sensitive to light and noise, they can just say that. Saying they're HSP doesn't actually explain what accommodations they would need because everyone's sensitivities are different.

As I outlined in my article, I am not saying everyone using the HSP label is trying to avoid an autism diagnosis. I was calling out clinicians, specifically Elaine Aron, for doing this. She made up a whole new category, then profited off it by exclusively offering products and services for HSP.