"I didn't post this to start a debate about..."
You posted on a public forum, the other users are going to engage with it how they will within the rules of the forum. You don't have to engage them back but you don't really get to dictate how they engage initially.
If you just want a public digital space to post your thoughts without any feedback you can just start a Twitter and mute replies, or a blog.
I have no idea, half the fun of posting is reading the comments. Being exposed to novel views and other opinions is both humbling and sometimes a learning experience. If someone wants to steer a conversation in a certain direction, it sounds like they're looking for affirmation, rather than discussion.