Your political leanings have clouded your judgement, Pebble will never be OK as you put it. BBNC's other considerations in mining have NOTHING to do with what the real issue is and thats protecting a natural resource that cannot be replaced. The only significant split as you put it is not between "TRIBES" as you are discussing the same people, it is between individuals. There is no reason to wonder why,  it's simple many are missinformed like you.