{POLL} How many genders are there?

I agree with OP, to be honest.
Biologically there are only 2, of course, but within the social/mental side of things people can identify as whatever they want to.
Me personally, I'm trans - I see myself as a female. I understand that I won't be fully, biologically female, but I'd prefer to be as close and as comfortable doing so. Is it that much of an issue to what people define themselves as?