This is BS pure and simple. We captured very few POWs as the Japanese normally fought to the death. My father was on New Caledonia, Saipan and in the battle for Okinawa, and hardly ever saw a prisoner. He told me some Kamikaze pilots did land on Okinawa and screamed to be let out of the plane before it exploded (they were welded into the cockpit).
They just make this crap up and the tin foil morons just eat it up. Really sad.