You are correct about that, apologies.
But the point that I was making is that it's not as simple as "XX or XY" - not to mention that 1 or 2 people out of everything 1000 are born intersex.
But it is not intersex.. it is an extra chromosome... not changing the male or female aspect (the y chromosome brings about the male, whether it is xy, xyy, or the incredibly rare xyyy)...
There is no genetic link to homosexuality or 'transgender' feelings... and if it is not genetic, it has to be choice, learned behavior, or a result of environment (something outside the genes making the abnormality)
Look.. I am not against gay people or people who want to live as the opposite sex or whatever... I am against these arguments that try and put the issue as something it is not
If the child is a male, use the male bathroom.. if the child is a female, use the female bathroom.. and it does not mean what they or someone else FEELS they are... you can feel that you are a cheetah deep down inside, it does not change reality though