Of course there is the autism spectrum. But it is a spectrum, it is not something that goes from mild to severe or where people have every symptom on the list in a certain degree. The spectrum is diverse - so it is wrong to make any general assumption about it.

(Note: I am not talking about "autism spectrum disorder" diagnosis according to DSM V or ICD-11. These diagnoses have a defined set of required symptoms. But the spectrum is far bigger than that).