Changes in the DSM have made it much easier to "diagnose" autism compared to the past. It's probably more effective to look at outright misdiagnosis based on the DSM-V or "diagnoses of convenience" for the increase of autism over the past 10 years. Helicopter parents collect kids' mental disabilities like merit badges to show off to their friends, so easier diagnosis = happier parents, and it's easier to tell said parents their kid has a mental disorder rather than telling them they're shit parents who should't be in charge of a pet rock.
Also remember that the DSM arguably doesn't consider "gender non-conformity" (dysphoria) as a mental disorder in most cases, but playing too many online video games is considered a mental disorder.
Also remember that the DSM arguably doesn't consider "gender non-conformity" (dysphoria) as a mental disorder in most cases, but playing too many online video games is considered a mental disorder.