That's not "cringe" though. That's just a lack of social awareness.

Let's be careful not to confuse the fact that autistic people have trouble knowing when it's appropriate to inject something into a conversation with the content of what they inject. It's all too easy for someone to conclude that anime itself is bad, or that everyone who likes it is bad, because the people who tend to like talking about it don't know when it's appropriate to do so. This conflation, I believe, is the driving force behind cringe culture. I've seen this happen far too many times to far too many subjects, including most if not all of my own special interests.

Saying that autistic people lacking social awareness is bad is completely uncontroversial. Attempting to correct this by labelling it "cringe", and, intentionally or not, them it's their interests that are the problem, is not only wrong but harmful.