I think when you have had to fight hard for support and awareness for yourself or for someone you love and advocate for, it is hard not see everything through that prism.
The terms 'Special/ complex/additional Needs' or descriptor 'Disabled' is like trying to describe a vast forest of trees with one term. Each tree is different and each tree itself has it's own differing branches....there is no uniform 'one way'...within ds's tree of a particular genetic condition there are people with chronic medical needs....others are only affected in a minor way, some have ADHD and are autistic...others have traits, some have severe learning disabilities...others have mild.
On mumsnet there has always been this tricky conversation within differing branches of the 'autism community' - all the difficulties around the terms high and low functioning, autistic adults and parents of autistic children...then patents of autistic children and parents of autistic adults, autistic girls being described as always 'masking', children with autistic traits as part of or as comorbidities with other conditions feeling finding it difficult to find a place and I remember feeling like everything was about autism, and any thread about other disabilities or needs were only about 3 posts long!
The one thing I would say is we are all in the same forest...even if we're in different parts!