I love HK, and I have friends in HK. What I've heard is very different - most protesting has been peaceful, sometimes turning violent after actions by the police or a few anarchist types on the fringes (and let's be honest, there's a good chance these are often working under instruction of the secure apparatuses). They also vehemently deny any kind of racism against mainlanders - people are against the new security laws and restrictions on personal freedoms, nothing else.