They have survived just fine without outside help, and acted hostile towards most attempts from outsiders to do so. They don’t need or want our help. They don’t need our technology.

Visiting North Sentinel Island is prohibited by the Indian government. Idiots still do it anyways and usually end up killed.

Leave them alone. They are living their best lives already. No need to interfere. No need to drag them into the misery of the modern world.