In working for years with both the family and their loved ones' substance abuse issues, I have concluded that even though there are a myriad of reasons for relapse, there are four basic ones that can become an easy switch to flip.
The battles we must fight are not with our enemies but with ourselves. No matter how much we hurt, or how much harm has come to our community, we can never find healing in bringing more hurt into the world.
A major psychological source originates in people's responses to the crumbling of an overall way of life that's pretty much predominated throughout the 20th Century. Dealing with these shifts can have frightening impact.
Regardless where we look, the blame game is in full swing. If we are honest we'll admit we've been there, ourselves, some of us more recently than others. I know that I am raising my hand on that score, too.