Downvotes might be because your trope one liner put downs aren't adding much. "I thought the western world was immune to communism", "This place is dear to me and now theyre destroying it", what because we're exposed to views different to ours? Which "they"? Who is to say whatever downvotes you've caught aren't entirely from Western pro-capitalists?
As someone not of Asian heritage who has been active in Hong Kong related threads, has friends there, and supports the demonstrators, I can say to my eyes, it is _not_ predominated by pro CCP people. I've certainly had a discussion or two, disagreements, a different view of how history played out - they get their spin from media, we get ours. There's a few people with a distinct perspective. It's always useful to hear the opposing view, or evidence you're mistaken, even if you never reach agreement.