I am not angry but confused(to the responses from some Chinese net citizens of the 2 students's being murdered on USC campus)

I am not fury, mad or even slightly angry at all after having heard the responses from some Chinese Net-citizens, but confused, deeply, for how some people could possibly become so ridiculously stupid, actually, ignorant, yet they are probably all good at math, maybe even advanced math. This does not make sense to me in any way. People who can type, who can go to the website and read, who can speak and write in a rather difficult language system, act like 3 years old kid feeling good when some other kid has fallen on the ground from his bike and got hurt, instead of him, who does not have a bike. Yet they are not quite satisfied. They wish all the kids who have bikes fall and get hurt. Why would they feel happy seeing the other people who have absolutely no business with them suffer? It is so strange because even the very first human beings who had lived in ancient societies or even earlier, in Paleolithic Age were seeking a way to archive the greatest amount of happiness for the whole group. What are they? Maybe I cannot say them ignorant because the word ignorance perhaps cannot be applied to creatures other than human beings, even if they can speak, walk and eating shit, which are not necessarily the absolute qualifications for being a human. Besides, I do not see according to what they have drawn their conclusions.


I'm confused.
I'm not angry, at all,
but what's the fucking matter with our society?!