Re. [1,2] see [4], but I wouldn't expect it to convince you.
Re. [3] I fail to see how an apology is an acceptable excuse for the protesters' behaviour, regardless of their cause.
[4]: https://weibo.com/1989660417/I2cCLyIGC?refer_flag=1001030103...
[4]: https://weibo.com/1989660417/I2cCLyIGC?refer_flag=1001030103...
Presumably you think the same thing about the behaviour of the police. But they are lacking even an apology.