Careful what you wish for, looks like they might add in the brute force option soon:

https://www.washingtonexaminer.com/news/chinese-military-ama...

>"Beijing’s latest response to protesters came as a grave threat issued Tuesday morning through state-run media, saying Hong Kong citizens are "asking for self-destruction,"

They're gearing up for that, or at least posturing that it's coming - perhaps hoping the mere threat is enough. Troop exercises, exercises that would seem suited for civil war not crowd control, troop ships on the border:

https://www.theguardian.com/world/2019/aug/13/colour-revolut...

Me too, so sick of these governments (another example is US): http://www.nbcnews.com/id/45340184/ns/us_news-life/t/police-...

Why can't these brute countries just show a bit mercy to these peaceful protesters?

The brute force bit might come later. https://en.wikipedia.org/wiki/1989_Tiananmen_Square_protests