Personally, I agree with you that if someone wants you to stop doing something, you should stop. That's a moral thing for me. But not everyone feels that way. People are within their rights to keep debating if they want to, and I respect it. That's just how things are. While you have your freedom to say "guys, quit it," others have a freedom to say "no I won't, your reasoning is wrong, blah blah blah."
If you're looking for more amicable discussions, I'd honestly suggest either a character support thread, the social thread, or Discord. There aren't debates here 24/7, but it's one of the most common ways we communicate in this thread. A lot of us love the thrill of a good debate, and it teaches us new things and allows us to explore new perspectives that we couldn't have gained if we were to never contest our beliefs.
If it makes you feel any better, I'll tell you that within this thread, nobody debates out of pure malice or to troll. Yes, some people may be blunt, or their wording comes off as rude, but that's just how some people speak, you know? They don't mean it necessarily, but at the same time, not everyone cares about protecting the feeling's of others. In this thread, we got a mixed bag of folks. Very nice people, nice people that can be blunt, nice people that can be rude, the occasional asshole, etc.