History goes like this: Chick in Japan, Dude in America. Causing most people to take the middle man (a,k,a futa).Similar to Birdo's situation except opposite: Cross-dresser in Japan but made female in America. The long story of that is controversy, the short story is America is halfway stupid when it comes to trends in certain Japanese video games
Nope, 'cause originaly Poison was a girl and become a man while crossing the japanese border (read 'japanese games' NA/EU-ports/localisations'). So it's just futa.