Eh... I mean, I'm not an atheist but you can observe with your own eyes that some people are genderless, androgynous or are born with male/female sex organs but present the opposite. That's just a fact of reality. Every school had a couple of weird kids that got bullied for seeming like a boy when they were a girl, vice versa, or were seen as a sexless weirdo. Remember that skit "it's pat" and the gag was no one knew what Pat was? Or people who always get mistaken for the opposite sex? That's more than two genders. It's just obvious that some people are this way and to deny it is delusional. You can not like that, that's your opinion, but it is real regardless if it makes you uncomfortable.

God, however, is not knowable in these ways, it's not tangible. Let's use the intelligence we were given to actually think things through. You can maintain your spiritual belief without denying observable reality. God wants you to use your mind to be logical and coherent.