It's been mangled by culture.
Once upon a time, it was unambiguously a pretty debilitating mental state. If you had that diagnosis, everyone could see issues and it wasn't at all something that anyone would aspire to.
Then Asperger's came along and thus began the 'diagnosis as an excuse for selfish behavior'. The general impression was "a smart person who has a tendency to be a jerk", which sounded totally awesome to a lot of people. They didn't need to try not to be a jerk, they had a pass in the diagnosis. People *wanted* this diagnosis.
Then, at least in part, some felt that Asperger's had become a very coveted 'diagnosis', and self-diagnosis was popular. They said 'oh, you know what, maybe if we group it with general autism, maybe people would be more reluctant to want that association, and it can go to being an aid for those that needed it.
But no, bereft of their diagnosis, they would instead do the same with autism, really diluting it and making a lot of people end up not taking autism seriously.
Nowadays, Gen Z highly values 'neurodivergent' as a badge of honor, that anyone cool *must* be neurodivergent.
So we end up with everyone saying they have a diagnosis, that they are neurodivergent, and they absolutely are not anything so pedestrian as 'normal'. Meanwhile those that really need it are generally taken less seriously because it's been diluted so much.