A lot of the benefits of neuro-diversity are seen at the population level. The bearers of these traits are “taking one for the team” so to speak because they are preserving a genetic trait potentially useful for the future but may be painful in the present. There’s going to be a wide range of suffering though, from manageable ADHD to crippling depression. Society should simply support these people and mitigate near term suffering as much as possible, but calling these things a disorder isn’t wholly inaccurate because they can be reasonably described as problematic for current day life, even if potentially advantageous in future scenarios.