From my limited understanding of South Africa, its seems that the Native People, just like the Native People here in the "United States" were robbed of their basic way of living. Land was taken away, basic resources were redistributed to the colonizers, and then the question of "what do we do with these poor people now" came to be.
People need land, people need opportunity to grow.
Handouts are a bandaid. We need something to care for and tend. It is sad to me that we want to control people more instead of find the ways and opportunities to let them thrive.
I did call you "authoritative" and my dismissiveness of your idea came from the assumption that people want to be drunk and high, instead of recognizing that drugs and alcohol are a means of escape for desperate people who want to create good feelings in their lives.
I guess the only "real" solution is the solution that we can work on ourselves. For me, it is making sure that everyone in my community receives proper education, the ability to read, and form thoughts for themselves.