"Agree with me or stfu" eh?
This isn't an issue of personal tastes, this is peoples' freedom we're talking about here. You're assaulting the concept of these peoples' identities for no other reason than that you've never heard of it before. How much more callous and self-centered can you be? Warpus is right to shout people down who think this way.
No, I think not. I do like, however, how you have decided that just because I have an issue with male and female not existing as choices automatically means I am full of hate and mockery.
First, they do exist, as others have noted.
Second, you're still not understanding the difference between gender and sex. Sex is biological, you have a penis or vagina, etc. However, even that binary is incorrect, since there are people who are born with both organs sometimes. Gender, on the other hand, is part of someone's identity, it's how they see themselves and understand themselves. Gender is fluid, one's perception of oneself can change through life.
Third, this isn't your bone, you said you had never heard of these before, and therefore they are stupid.
Just because you don't understand all the ways transgendered, asexual, or other categories of people identify doesn't make those identities invalid or deserving of your scorn. In the past, the binary of male/man female/woman were the only acceptable ones as enforced by society. But as our society evolves, so does our capacity to sustain and defend tolerance and tolerant structures, and that is why the new issues of homosexuality and gender identity have come up in recent years: we've reached the point where people who formerly were forced to suppress this part of their identity are now becoming more comfortable with voicing it. In addition, people whose identity would have been forced into the old "molds" are now understanding that these unfamiliar feelings they've had are natural and have meaning, it's not "just them." There are others like them. This openness enables them to better understand and explore who they are, and what they are doing here. You
don't have the right to tell them that they are wrong. You
are obligated not to obstruct them from exploring who they really are, and to reach maximum personal fulfillment from that. Understanding one's identity in the universe is one of the most fundamental parts of being a sentient being. By scoffing at them and mocking them, you offend the very idea that they are fully human. In a world struggling to understand, grasp, and make room for these new ideas and the people who believe them, such an attitude is very dangerous to these people. Transgendered and homosexuals still get murdered simply for being who they are. A big part of what enables that to happen is people treating them and regarding them as if they are lesser people or "others" who don't belong here because they're not like us.
To be quite simple: everyone has the right to a personal identity which defines them as belonging in this universe. It is our obligation as civilized, sentient people, to make room for all possible identities, and to make everyone feel like they belong, and that it's okay for them to be different from other people. Being different doesn't make you bad or wrong.
Please bother to learn about new things before you just reflexively denounce them out of simple unfamiliarity.