Why would I need to be well read on socialism to speak on objective facts about what happened to the Hong Kong protestors?

If your picture of reality can only be defended to people who’ve been “taught how to grapple with these topics properly,” and to someone who’s “incorrect” in their thinking you can’t say where you get your information and keep changing the subject or refusing to address basic questions, it’s a red flag that your view might have some problems. A lot of things sound really good if you get to do all the talking and any opposing viewpoint just sits and listens and isn’t supposed to ask any questions.