Gender & sex is not a social construct. However, aspects of genders are. Ex; women wear dresses & high heels, men wear ties etc. If there was a third gender, then there would be a 3rd sex organ between the legs for people that isn't a penis or vagina. But there's not. There's only a penis & a vagina.
Yes, intersex people and hermaphrodites do exist. But being intersex is a birth deformity, and it doesn't classify as a 3rd gender. Everyone (as well as intersex folks) have either an XX chromosone or an XY chromosone.
And yes, I do agree that a lot of people do not identify as male or female & consider themselves "agender" or "gender queer" or "non-binary", but those do not classify as a third gender. It just simply means that you don't identify with either gender.
Transgender is also not a third gender. It simply means that you are transitioning to the opposite gender from the gender you were biologically born with.
Look, I'm not here to regulate thoughts. I'm just simply saying that you cannot change the laws of science & biology to justify your agenda. This argument is driving MANY people (such as myself) away from SJW's & liberal ideas. I do support the LGBT community, but what I will never support is people trying to debunk biological facts and deceiving people to convince them that their false ideas are accurate.
Stands for Vindication of Marriage Rights. It's an organization to protect biblical & traditional Marriage to be defined between 1 man & his wife. This political group believes that anything outside the traditional definition & standards of Marriage should be banned, frowned upon, and illegal all around the world.