Neurodivergence is a basic part of humanity and always has been. A group with a mixture more easily handles challenges as different people accomplish different things. Obsessing about details is a benefit under the right circumstances. Being impulsive is a benefit for trying new things, like eating new things. Following other people's lead when it works is great so not everyone is trying new things.

Heck, not perceiving reality accurately can be a benefit if it means getting a new perspective on things. That is why so many cultures have appreciation for hallucinating in controlled settings.

Society punishing non-conformity is the underlying problem for sure, where everyone is expected to fit in a narrow scope called neurotypical which in my opinion is not typical at all.