Maybe this is a partial answer to your ``what is the world becoming nowadays'' question:

So far as I know, everyone who has shot up a school in the U.S. was a product of a U.S. public school. They were educated and socialized there, sometimes in the very school they shot up, and they never internalized any reason not to murder.

I think that we shouldn't be looking to school or to government to solve this problem: they seem to be the cause.