Let’s suppose our earth is visited by aliens. Giant extraterrestial spaceships appear. They make contact, abduct a couple of humans, some of which return with strange diseases. Oh yeah, and heaps of iPads as gifts. The people that make it back speak of a strange society, where everybody is essentially a mindless part of a big mainframe, not unlike the Borg in Star Trek. One day, the aliens make contact. We try to fen…
Would I want to be left alone by the Borg? Yes. But what if it was The Culture? I would be very disappointed if a civilization like that saw us and said "Oh, they probably wouldn't want all of our bullshit, leave them alone." I'm sure there are many who would disagree.
The big problem with the alien analogy is our level of knowledge and language. The tribesmen are...savages. There is no framework whatsoever for them to understand anything about modern society and make reasoned evaluations. Conversely, it's hard to imagine that scenario between us and aliens. It's certainly possible that their society is so far beyond our wildest dreams that we can't even begin to make sense of it, but it's also possible that we have crossed some fundamental threshold of knowledge and communication.
Is our culture superior, is it not, how can that be evaluated? Most people do tend to stay in it rather than set out into the woods. Of course they have been biased towards that since birth, likewise for the Sentinelese and their ways, it's a really interesting and highly subjective question.
Whether we attempt to contact/assimilate them or not, we have made a choice. If we did try, it could go well or it could go poorly; they could be eternally grateful for knowledge and technology, or they could be destroyed. There are so many factors and ideological viewpoints at play, I just don't understand how people here can be so sure that one way or the other is The Right Thing to Do.