Not only does a "one-sided" question like this get you "close enough", the worldwide male/female gender disparity (around 60 million more males than females in

Not only does a "one-sided" question like this get you "close enough", the worldwide male/female gender disparity (around 60 million more males than females in 2010) is almost certainly larger than the worldwide intersex/trans/etc population. A question like, "Are you a male or a Mexican female?" gets you even closer, though.