It’s the Okinawa women I doubt. And it’s because it appears to happen there way way way more than anywhere else in the world (including the rest of Japan).
Okinawans actually don’t like Japanese. And the end of the war Japan gave USA most the island. So they really hate Americans too. An Okinawan girl having sex with an American is like a 1950s white woman having a black boyfriend. Her parents would make her say she was raped for the family honor. I guarantee you that is happening a lot in Okinawa.
One out of 4 people living on Okinawa are US military . Where else in the world does the US military comprise 1/4 of the population of an area ? Women’s fault ? A few , maybe , but not the majority by any stretch of the imagination . You are too quick to defend the US . Remember the case of the 12 year old who was gang raped there ? Was it her fault ? Status Of Forces Agreement allows the military justice system the right of first refusal for investigating and prosecuting U.S. troops who are suspected of committing off-base crimes in cases where the service member has violated both the Uniform Code of Military Justice and Japanese law !