"DylanWomack
Because gender is man made not made by God."
You said it yourself, gender is a man made concept. Thus it is not based on any natural phenomenon, merely an artificial concept.
To concieve of two gender identities makes sense given that there are two sexual identities that they can be assigned to.
What outfits and accoutrements and face paint people choose to wear is what they choose to wear. But underwear is not going to change the fact that whatever genitalia you got down there, you got down there.
Should there be any confusion as to which because of developmental irregularities, then a simple DNA test will clarify if you is a female or if you is a male,,,