I'm sure if I hadn't responded at all (as happened on the other thread, where the poster was berated for it), you would have complained I was not interested in others' views. Here, where I respond to others views, and ask them for their point of view, you still object.
Again, you seem unable to strike a balance. You act like the only options here are not to respond at all, or to keep posting with Terminator-like tenacity: addressing every single detail, elaborating, explaining, defending, attacking, giving numbered lists, asking further questions. You perceive this as engaging. Others see it as overbearing.
I can imagine it has the potential to be extremely irritating in class, and yet you're either completely unaware of how you come across, or dismissive of anyone's opinion. The fact that you've managed, in the course of the thread, to actually alienate people who might initially have agreed with you (or at least with your very carefully-put AIBU), should be a clue.
Just because you're not shouting over other students doesn't mean you're not being rude or difficult.
I prefer the shouty students: you can tell them, straight up, to stop. It's the ones who're constantly 'can I just add-', 'can I just ask-', 'have you not considered-' and I mean constantly; this isn't about participation being wrong, but about one person's incessant contributions taking up a disproportionate amount of class time who are more difficult to manage, because they're rarely able to admit that their behaviour is problematic. They're either just being 'helpful', or they have a belligerent, I've-paid-my-fees-and-I'll-ask-as-many-damn-questions-as-I-like attitude. And I don't think nationality has much to do with this, although it's often offered as an excuse. It's a character type.
Having one person always piping up is only 'helpful' if it encourages others to participate I appreciate having a student who can be relied upon to break the ice but, if it gets too entrenched, it becomes very difficult. Any teacher who gets into the habit of letting one person dominate discussion is being quite lazy; it's tempting, when you have a slower, quieter class, to keep things moving by letting the same more chatty students answer again and again, but it's not fair and it's not good practice. But if the students are adults, then they should also take some responsibility for their own behaviour, instead of finding endless justifications (I've paid a lot, I've got more professional experience, I'm more committed to this course, it's a cultural misunderstanding) and ultimately dismissing any criticism.