The problem is that once we make contact with them, 50% will die due to disease. The rest will lead miserable dependent lives, and probably turn to alcoholism.

The problem is that once we make contact with them, 50% will die due to disease. The rest will lead miserable dependent lives, and probably turn to alcoholism. I have seen this first hand with the Jarawa people of the Andaman Islands, and anecdotally with many other tribals. History repeats itself.