Taken from the youtube comments:
The Sentilese are the best Archers on Planet Earth.
For those that don't know, the reason why they're so hostile towards outsiders is because back in the mid 13th century the Europeans (Spain/Italy & Britain) ventured to the Island & made contact with the tribe.
They planned on occupying the island due to it's location in the Indian Ocean they figured it would make for a good Naval destination & trade route for India.
The Euro's tried to integrate the Sentilese into their way of life & teach them their language the Sentilese didn't want to mix cultures & refused to cooperate with them, so the Brits kidnapped 2 Elders & 4 children from the tribe.
The 2 Elders were tortured & treated horrendously eventually dying of disease, the children survived & made their way back to the Island & told the rest of the tribe about how evil/awful the Brits were.......which then made them develop a no tolerance policy towards outsiders altogether.
They've even killed Indian boatman who have made the mistake of trying to venture to the Island, they simply will not let anyone set foot on their land.
Also, a lot of the information about them is racist & inaccurate.
1) They're not "primitive" people, they just live the way traditional tribes have always lived 60-70,000 years ago.
2) Their population is much larger than the reported 150 people, they protect the progeny of their tribe in the center of the Island & keep them concealed from the outside world.
3) They absolutely know how to make fire, anybody or any report that says otherwise is lying.
4) They have Elite archery skills, including having full knowledge of the distinction between poisonous & non-poisonous arrowheads.
5) They are NOT cannibals.
6) They intentionally know how to hide & from aerial video/filming, meaning they understand & can see technology that tries to fly over them filming them.
7) They do have ancient religious customs that they've followed & maintained from Africa.