@Dremmwel Yes I totally agree with that. In a way, the notion that a perfect society would know no disability, is ableist in itself.
The issue DOES also apply to autism, because autism has aspects other than social, e.g. it can impair speech, mental capacity, executive function, and sensitivities. All of those, if in a certain form, are potential disabilities. It is possible that OP doesn't experience any of these forms of autism, which could be seen as a privilege (although the social aspects still make it hard enough in the current hostile society).