Hypocrisy behind West's double standard

If a name is not true to the nature of what is said, what is said cannot make sense; if what is said does not make sense, the thing concerned will not be done. So what should we call those in Hong Kong who wear black masks and vandalize public facilities and attack police and innocent people?

Should they be called rioters or protesters? Should what they do be called a protest or riot?

Much of the Western media and many Western politicians prefer to call them protesters. And they call the violent bedlam they create "freedom of expression". This is not because they are bloodthirsty or delight in mayhem. It is simply because such violence takes place in Hong Kong, a special administrative region of China, whose political system and ideology are different from theirs.