You know that Golden Rule?" Not the one that VCs quote, but the one that goes "Do unto others as you would have others do unto you?"
We should think about that when we choose how to deal with uncontacted tribes. It may be that one day another intelligence will need to decide how to deal with us, and on that day I hope we can say, "Yes, we used to have a habit of massacring technologically inferior peoples we encountered, but we grew up a little and we don't do that any more. Then we used to keep them alive but destroy their culture and identity while mouthing platitudes about how we were helping them, but we grew up a little and we don't do that any more either."
We should think about that when we choose how to deal with uncontacted tribes. It may be that one day another intelligence will need to decide how to deal with us, and on that day I hope we can say, "Yes, we used to have a habit of massacring technologically inferior peoples we encountered, but we grew up a little and we don't do that any more. Then we used to keep them alive but destroy their culture and identity while mouthing platitudes about how we were helping them, but we grew up a little and we don't do that any more either."