I'm not sub clinical so I will put my reply behind a spoiler to minimize my intrusion on this space.
spoiler
I think it is a massive disservice to treat autism only as a disability. I think it harms 'subclinical' people and also people who are identified by medical diagnosis as requiring supports.
ETA: because it is only diagnosed when it a disability, it is sometimes viewed with shame and diagnosis and access to support is sometimes avoided for fear of stigma. This is particularly harmful when a parent chooses to deny a child access to care. Children are literally beaten into acting 'right: (its me, I'm children) rather than being understood.
OP mentioned 'different levels of intensity' which might be saying the same thing as I am about to, but I think it's critically flawed to make autism diagnosis contingent on "clinically significant impairment in daily, social, or occupational functioning" because there is no good way to quantify the impact of masking.
I do hold the view that autism is a disability but when I say that I am referring mostly to the autism diagnosis which requires it to be debilitating. In addition to that, I agree with the social model of disability and that for at least some people they would have no or less impairment if society wasn't built to only accommodate neurotypocals.
I think we lose a lot of data (unacceptable, frankly) by ignoring the experience of a massive set of neurodivergent people and how they experience the world. We lose the opportunity to understand each other better.
I'm late diagnosed and I think the only reason I got the diagnosis is because burnout nearly killed me. I can't help but think of and mourn for all the people who died or had their quality of life severely impacted by being forced to raw dog life in a neurotypical world. How much shame people carry because they are called lazy or bad because they don't fit in. How people pass that trauma on to their children.
ETA: I don't think diagnosis is a magic bullet to a better life, but I'm imagining a better future where one of the first steps might be actually supporting people who have medically diagnosed disabilities and maybe once we figure out it's not such a big deal then people will be like "we could do this for literally everyone, huh?" I'm in the process of turning diagnosis into supports and accomodations and it's fucking exhausting. The process is abelist as hell.
This is why I strongly support self diagnosis and accomodations for self diagnosed people. More widely, I think people should be given the space to identify what they need to live a happy and healthy life and to be able to ask for accomodations to achieve it. I don't think this takes away from people who need more supports than others. There isn't a limit amount of caring and understanding we can give people.
Anyways, I'm hoping luxury gay space communism does away with the need for people to need to ask for support and we can all literally just vibe.