True Left

Autism is a term originating uniquely from Western psychiatry:

The term autism was first introduced by Eugen Bleuler in his description of schizophrenia in 1911.[3] The diagnosis of schizophrenia was broader than its modern equivalent; autistic children were often diagnosed with childhood schizophrenia.[4] The earliest research that focused on children who would today be considered autistic was conducted by Grunya Sukhareva starting in the 1920s.[5] In the 1930s and 1940s, Hans Asperger and Leo Kanner described two related syndromes, later termed Asperger syndrome and infantile autism. Kanner thought that the condition he had described might be distinct from schizophrenia,[4][3] and in the following decades, research into what would become known as autism accelerated.[3]

Therefore you can simply respond that, as a decolonizer, you reject Western psychiatric terminology. If those using the term "autist" are "white", you can call them colonialists. If those using the term "autist" are "non-white", you can call them colonized.

"An entire nation with RSD would likely be more cooperative"

Then again, if your goal to prevent rejection, you can either be oppressive or non-oppressive depending on who rejects you. I am sensitive to rejection myself aside that I am diagnosed with ‘autism’, and that’s why, in the first place, I been an anti-Zionist myself and refrained from reproduction despite coming from an Israeli family. But no matter how little disrespect you can bear, that does not mean everyone will have the competent means to prevent it. You would still have to tolerate disrespect for not doing anything sincere to earn it (and for not having any clue of how to respect).

Trump - a Westerner - is sensitive to rejection, but does not seem to know how to avoid such rejection outside his MAGA die hards. Same with Jews. You do not want to be like Trump (or Jews). Do you? In contrast, Hitler - a non-Westerner - is also sensitive to rejection, but managed to earn respect from multiethnic backgrounds (except ‘whites’). That is because he knew his audience. He understood society’s circumstances and used his heart to cultivate his sincere vision. Same with ‘nonwhites’ of the counter-culture. Of course you should want to be more like Hitler (or other ‘nonwhites’). Do you not?

But at the end of the day, rejection and disrespect are mere consequences. Instead of decreasing rejection by itself, decrease rejection by not earning it. If you feel like you do not deserve disrespect from high-quality beings, do not disrespect others in the first place. And more importantly, encourage others to follow your example of fair treatment. Those who do not follow are to be tribes, who deserve no consideration.