Yes, that hypothetical would reverse the script. However, neurotypical people still vastly outnumber neurodivergent people. It can feel like an overwhelming amount of people online are neurodivergent, but in the “real world” we’re still very much a minority.

It's more of a perceived normality rather than a real normality. Even if adhdh and asd people were the majority (they are not), the world is still wired to expect and accomodate neurotipical people