Wow. Do you feel the same way about feminism? Racism? Do you doubt the existence or severity of ADHD, ASD, etc?
In case there was any doubt on that last point, consider that each of those lower lifespan by about 30 years, have ~15X higher suicide rates, and are 1:2 are not able to work full time.
Insults are in the eye of the beholder. For a person with a disorder marked by issues with eye contact and understanding social nuances, imagining insults that aren’t there IS the disability’s effect.
If you comment on how much a black person enjoys watermelon and you do so objectively without malice, it’s still fair for that to be considered a big insult. Why? Because it has been used as a derogatory stereotype for many years.
If you want to understand the perspective of neurodivergents, look up the terms “allistic” and “ableism”.