By far the greater part of violence that humans inflicted on each other is not the work of criminals or mentally deranged, but of normal, respectable citizens service of the collective ego. One can go so far as to say that on this planet "normal" equals insane. What is it that lies at the root of this insanity? Complete identification with thought and emotion, that is to say, ego.
The insanity of the collective egoic mind, amplified by science and technology, is rapidly taking our species to the brink of disaster. Evolve or die: that is our only choice now.
That in you which recognizes madness as madness (even if it is your own) is sanity, is the arising awareness, is the end of insanity.
You don't need to condemn. Just observe, That is sin. That is insanity. That is unconsciousness. Above all, don't forget to observe your own mind. Seek out the root of the insanity there.