I love that book - "In the Realm of Hungry Ghosts" You are so right Gabor Mate does have some great insights.
I find it interesting how he said individuals are more prone to alcoholism if they have attachment issues or are lonely. This idea really forces us to look at addiction with compassion instead of judgement. If only more people read his work!
Dr. Maté is a professional with a deep expertise on the subject of addiction. I read his book "In the Realm Hungry Ghosts" and he has a lot of great insights on the subject.