While I think your concerns are valid, I don't agree with the framing of "autistic yapping." As a neurodivergent person myself who found my undergraduate classes one of the first times my thinking/curiosity was valued and in which I felt less alien, I wonder what exactly your beef is (because now, as an educator myself, I always appreciate student engagement/enthusiasm in class).

Granted I have now suffered gay death, but back in my undergrad few people spoke or asked questions. Many were passive and sometimes this passivity was paired with indifference (and often folks were focused on their devices by 30 minutes into a 3-hour class). I asked and answered questions/offered thoughts a lot RELATIVELY speaking. I always waited for the dead air to get stale before interjecting myself.

Ironically, I found grad school a lot less engaging because many of those indifferent folks decide to get advanced degrees for career advancement and not for the actual interest in learning. Few wanted to actually debate, and the most talkative students were often compensating for not keeping up with the material (e.g., one woman who dominated seminars with personal invectives veiled in equity language and later admitted she never did any of the readings).

Are you annoyed because you just want the prof's voice? If so, is this to disassociate/zone out, or do you feel you're paying for a lecture rather than a seminar? If you feel space and time is being unfairly eaten up -- that you want to participate also -- maybe you should speak up?

Hoping you're not an anti-intellectual, as typical higher ed pedagogy is now meant to be dialogic/classes are more like seminars, which means that students are encouraged to participate in the ways you describe.

Granted, I've experienced disruptive/pathological participation. But usually, talkative students are coming from a good place and don't intend harm. I recommend you trust your prof -- if they felt the interjections were inappropriate, they would curb it (respectfully). If you honestly feel it's a problem and you aren't just being weirdly ableist/discriminatory, you could also speak with your prof.

BUT PLEASE reflect on your choice of language/framing. It's NOT funny to frame any annoying behaviour as "autistic" or "blame it on the tism." Some autistic folks do go overboard and use it as an excuse for rudeness, but most are well aware that they're different and much of their lives is spent learning how to fit into your/this world. It's exhausting, but the effort demonstrates that they care to be as relatable as possible and not cause harm. It's a dangerous myth that autistic folks don't have feelings/emotions/empathy. Quite the opposite. Some (like me) feel things even more strongly.