We must recognise the evil that is so prevalent and pervasive. We are reluctant to do so, because it seems to be judgmental and blaming; yet it must be done.
The traditional and all but universal belief in purposive evil is perhaps necessary for this, including the prevalence and pervasiveness of demonic influences.
Purposive evil is working through people, including ourselves, but pretending it isn't and that all bad things are inadvertent is simply untrue.
Bad things happen due to bad intent, yet the intent may be coming through people rather than originating within them.
Indeed, surely this is normal. This is the way that evil becomes so common, so normal. The person who does evil has a clear conscience, having merely said yes to the promptings of evil...