"I think ever member of the community has a right to make their own informed choice." Point taken. For now all we have are members of their community that made

"I think ever member of the community has a right to make their own informed choice." Point taken. For now all we have are members of their community that made contact with external world and expressed an isolationist stance. Of course we may not like it and consider that (regardless whether they want or not) they should be exposed again and again until we'll finally get out of them the buyer's "yes". I also guess that only then we'll call their decision "right" and "informed". If we may somehow disable our influence as actors in their decision then yes, I agree with you that individuals that desire the freedom of making informed choice should have it. For those who chose (having peaceful reasons) to willingly get in contact with external world, there should be left a door somewhere in their reach. "Culture is not a tangible thing to be 'lost' nor something that need be preserved" Here I doubt that you got in contact with enough cultures to make for yourself an informed opinion.