For the record I'm on the spectrum so I need you to know I take absolutely no offense to the terminology of moral autism when it comes to the left. I'm not sure it's entirely accurate but I do agree about the question of moral relativism. I do question the fairness in the world but most of the issues I do are in the narrow scope of my personal life. And as someone who has been told that trying to force the way I see the world is an unfair dictum because of it, I do understand the frustration in that sense.
The thing is as someone who knows a lot of people on the spectrum I'm pretty sure they would look at people on the left and say: "These guys are WAY too rigid in their behavior." And as anyone who spends time with people on the spectrum, you learn that they all deal with the world in different ways, where as almost every leftist deals with it a rigidity that is textbook in a way that makes little sense. Most of us - people on the spectrum and otherwise - come to accept the world is unfair and find ways to deal with it that are not as inflammatory or ridiculous as this. That being said, having heard my share of autistic outbursts that I consider absurd, it's not THAT much of a stretch.
In a related note:
Full disclosure on this as well: I disliked Thunberg before I knew her full life story. Now I actively despise her. THIS article you might want to find a way to connect to your own writing as it directly relates to your theory.