Addiction is a substitute for the "real thing" - connection. Whether we call it love, community or faith, it's just being connected to something beyond ourselves. http://wakeup-world.com/2015/05/26/the-likely-cause-of-addiction-has-been-discovered-its-not-what-you-think/
As @radioactivities said, stigmatizing addiction doesn't serve anyone - it only worsens the problem.