It's pretty well understood that current "let's get everything under the same umbrella so activists can claim they have more support" has been modus operandi for far left activists for a while now. Autism is one of those things: they bolted together "being quirky" and "can't be toilet trained, can't speak, constant random bouts of uncontrollable rage and violence" under the same umbrella. This enables former to claim victimhood and ask for political changes and resources based on the latter's situation.
When in reality, they have nothing in common. This isn't even diabetes kind of a situation, where causes are completely different but treatment is partially similar. This isn't even hepatitis like situation where treatments are different, but at least the illness is in the same place.
It's many completely different things, many of which aren't even an illness, all being grouped together for political reasons.