Serious Two or more genders?

Simple question. How many genders do you think there are? Explain.

I think there are simply two genders. If you want to be a transgender, or nonbinary, I'll refer to you as what you want your gender to be, but when it comes down to it you're still a dude or a girl if you have those specific genes. Easy.

btw some of thosetumblr people piss me off, like those vine comps of where they say that there is just "magic" in there pants instead of genitalia are fucking annoying. if someone asks you what your original fucking gender was, answer them correctly. or, even better, if someone asks you what it says on your birth certificate, answer seriously. jesus christ.