>Are you suggesting the victim is "oppressors" to the protestors? Or, are you suggesting anyone from "The state of China" should be tagged as "enemy"?

Anyone from China who given the chance does not surrender is fair game.

>How comes slaughter a human being (even if an enemy) becomes natural right in a civilized society?

If a party you have no prior social contract with endevours to threaten your existence you have every right to threaten theirs. Such people are undeserving of civility.