Gender: Two or a Spectrum?

[dead0man]

Does it matter what I think?  Science tells me there are 2, and they are determined at conception by chromosomes.  If some people want to self label as some other thing and call it their gender, what the funk do I care?  On the other hand, if you look like a lady to me and I say "thank you ma'am" after you provide a service for me and you get all pissy about it, then I care, and you're a c**nt.

So, how many genders? 2  Do I care if you call yourself something else as a gender? nope  Didn't vote.