Disclaimer: I have no quarrel with the mods using the term in the creation of this community. I understand why they chose it, as even if they share my disagreement with the term when applied to ADHD, there's not really a better inclusive term. "Mental illness" is really the only other option, and naming a community that would probably invite darker discussions that the mods might not be prepared to handle.
Another disclaimer: I think the term is perfectly valid when applied to autism, as autism is not, to the best of my knowledge, a mental illness so much as a difference in processing. Being autistic is only "bad" in the sense that our society discourages autistic traits. (Apologies if this is wrong; I'm neither autistic nor especially knowledgeable about autism.)
The term "neurodivergent" implies that there's nothing wrong with you if you have ADHD--you're just special and different. But my ADHD is an illness that requires treatment. A lot of people will tell you that the only reason ADHDers struggle is because society is set up wrong, but I don't think that's true, at least for me. Being unable to remember anything, unable to self-start, and hypersensitive to rejection would be massive problems in any world. Sure, the world today is particularly brutal for ADHDers in a way we could probably mitigate if we reorganized society to be kinder, but that doesn't mean ADHD isn't ultimately a disorder that some people need to treat with medication and therapy.
I think I disagree with how you’re defining neurodivergence and I certainly feel differently about my ADHD.
ADHD is part of who I am, I really like how my brain functions and there are lots of benefits to thinking the way I do. The structure of society and to a large extend capitalism is what causes conflicts with my way of thinking. I am not wired to sit at a desk for 8 hours a day for the rest of my life. But that is what society demands it isn’t a problem with me
Yes my ADHD can make some of my personal goals more difficult, but I can manage that through medication and strategies like anything else that may prevent me from achieving my goals.
Lactose Intolerance prevents me from eating cheese, but I still want to eat cheese and am happy that I can take medication to do so; it’s a good thing that our economy isn’t built around a requirement to eat cheese though, treating those who can’t as lesser, other or wrong.
I don’t like the term mentally ill because it implies there is a normality or standard. It creates a false dichotomy between the ill and the not ill. I don’t accept that.
My brain is how it is, my ADHD is how it is, my depression is how it is. But it is my brain chemistry, it is unique to me, is is part of who I am physiologically and shapes who I am intellectually & spiritually.
I am not ill. I simply do no fit in society’s false idea of normality. I diverge from that idea.