You remember life of Brian.

Sex is a biological reality dependent on the reproductive system of each species of life. Some species are asexual, others are monoecious, and others like humans are dioecious.

There are individuals who, because of syndromes, developmental disorders, malformations, genetic anomalies, and other atypical conditions, do not readily apparently fit into these categories. That does not mean they are a different sex other than male or female, it just means it is harder to know without testing. 

Sex itself is binary in humans, an individual can either naturally make eggs or make sperm. There is nothing else. 

Other sex characteristics like hormones and chromosomes are bimodal.

The existence of disorders and injuries, does not change this fact. Just like how the existence of people without legs, doesn't mean that humans are not bipedal.

"Sex: Either of the two main categories (male and female) into which humans and most other living things are divided on the basis of their reproductive functions. The fact of belonging to one of these categories. The group of all members of either sex."

Angus Stevenson, Maurice Waite (2011). Concise Oxford English Dictionary: Book & CD-ROM Set. OUP Oxford. p. 1302.

https://books.google.com/books?id=4XycAQAAQBAJ&pg=PA1320

Sexual reproduction requires both male and female haploid gametes. In most species, these gametes are produced by individuals that are either male or female. Species that have male and female members are called dioecious (from the Greek for 'two houses'). In some species, a single individual may possess both female and male reproductive systems. Such species are called monoecious ("one house") or hermaphroditic."

William K. Purves, David E. Sadava, Gordon H. Orians, H. Craig Heller (2000). Life: The Science of Biology. Macmillan. p. 736. ISBN 978-0-7167-3873-2.

https://books.google.com/books?id=kS-h84pMJw4C&pg=PA736

Definition of man (Entry 1 of 4)1a(1): an individual human, especially : an adult male human

https://www.merriam-webster.com/dictionary/man

Definition of woman. 1a: an adult female person

https://www.merriam-webster.com/dictionary/woman

male [māl]

an individual of the sex that produces spermatozoa.

Spermatozoa are not a social construct.

female [fe´māl]

an individual of the sex that produces ova or bears young.

Ova are not a social construct.

These are the citations for both these definitions. All these different medical encyclopedias and dictionaries use the same exact Dictionary definition from this link:

https://medical-dictionary.thefreedictionary.com/male

For Miller-Keane Encyclopedia:

male. (n.d.) Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. (2003).

For Farlex Partner Medical Dictionary:

male. (n.d.) Farlex Partner Medical Dictionary. (2012).

For The American Heritage® Medical Dictionary:

male. (n.d.) The American Heritage® Medical Dictionary. (2007).

For Segen's Dictionary:

male. (n.d.) Segen's Medical Dictionary. (2011). 

For McGraw-Hill Concise Dictionary of Modern Medicine:

male. (n.d.) McGraw-Hill Concise Dictionary of Modern Medicine. (2002).

For Medical Dictionary for the Health Professions and Nursing:

male. (n.d.) Medical Dictionary for the Health Professions and Nursing. (2012).

For iMedix forum:

male. (n.d.) iMedix patient discussion forum. (2010).

Dioecy (Greek: διοικία "two households"; adjective form: dioecious) is a characteristic of a species, meaning that it has distinct male and female individual organisms.[1][2] Dioecious reproduction is biparental reproduction. Dioecy is one method that excludes self-fertilization and promotes allogamy (outcrossing), and thus tends to reduce the expression of recessive deleterious mutations present in a population.[3] 

In zoology, dioecious species may be opposed to hermaphroditic species, meaning that an individual is either male or female, in which case the synonym gonochory is more often used.[2] Dioecy may also describe colonies within a species, such as the colonies of Siphonophorae (Portuguese man-of-war), which may be either dioecious or monoecious.[5]

Most animal species are dioecious (gonochoric).[6] It is estimated that 95% of animal species are dioecious.[7]

https://en.m.wikipedia.org/wiki/Dioecy

In biology, gonochorism is a sexual system where there are only two sexes and each individual organism is either male or female.[1][2] It usually occurs in animal species, with the vast majority of animals being gonochoric.[2]

Gonochorism is contrasted to simultaneous hermaphroditism (where an individual can produce both gametes). Gonochorism may have some overlap with sequential hermaphroditism, (where a individual can change its sex) where at times it may be hard to tell if a species is either gonochoric or the latter (e.g. Patella ferruginea).[3] However in gonochoric species individuals remain either male or female throughout their lives.[4]

https://en.m.wikipedia.org/wiki/Gonochorism

The Hominidae (/hɒˈmɪnɪdiː/), whose members are known as great apes[note 1] or hominids (/ˈhɒmɪnɪdz/), are a taxonomic family of primates that includes eight extant species in four genera: Pongo (the Bornean, Sumatran and Tapanuli orangutan); Gorilla (the eastern and western gorilla); Pan (the common chimpanzee and the bonobo); and Homo, of which only modern humans remain.[1]

https://en.m.wikipedia.org/wiki/Hominidae

INTERSEX PEOPLE ARE MALES AND FEMALES WITH DISORDERS OF SEX DEVELOPMENT.

https://en.m.wikipedia.org/wiki/Disorders_of_sex_development

Transsexual people have a medical condition:

Transsexual is a historic, medical term that refers to individuals who have undergone some form of medical and/or surgical treatment for gender affirmation or confirmation (historically referred to as sex reassignment). Some transsexual individuals may identify as transgender, although many primarily identify as the male or female gender to which they have transitioned.

People who identify as transgender but who do not seek medical or surgical treatment are not transsexual.

https://www.theravive.com/therapedia/gender-dysphoria-dsm--5-302.85-(f64.9)

"Transgender" is a non-medical term, it is a cultural and social term.

Other social terms include terms like goth, punk, jock, Christian, Pagan, Muslim, gamer etc.

Transgender is a non-medical term that has been used increasingly since the 1990s as an umbrella term describing individuals whose gender identity (inner sense of gender) or gender expression (outward performance of gender) differs from the sex or gender to which they were assigned at birth.

https://www.psychiatry.org/patients-families/gender-dysphoria/expert-q-and-a

I'll just give you examples of sex in other animals, in case you are still confused. 

Spoiler alert!! It's about gametes, not chromosomes or other sex characteristics. 

Clownfish. Sequential hermaphrodites. How to recognise the female: she makes large gametes.

Anglerfish. Extreme dimorphism. How to recognise the female: she makes large gametes.

Seahorses. Female fucks around while male carries babies. How to recognise the female: she makes large gametes.

Birds. Non-XY genetic determination. How to recognise the female: she makes large gametes.

Crocodiles. Sex determined by environmental temperature during development. How to recognise the female: she makes large gametes.

Platypus. Five pairs of sex chromosomes. X1X1X2X2X3X3X4X4X5X5 (female) and X1Y1X2Y2.... (male), where X3 and X5 look more like a bird (non X) than a mammal. How to recognise the female: she makes large gametes.

Hyena. Females have pseudo-penis which she internalises during mating. How to recognise the female: she makes large gametes.

Lily. Hermaphrodites. How to recognise the female part: it makes large gametes.

Flatworms. Hermaphrodites. They penis fence to determine which takes the male role. Most of the time, no-one wins and they each, perhaps dejectedly, spaff () over the other. How to recognise the female part: it makes large gametes.

Bees. Males are missing an entire genome copy. How to recognise the female: she makes large gametes.

Asparagus. No sense of sexed self and no plausible mechanism for social construction of gender. How to recognise the female: she makes large gametes.

Tuatara. Sex determination so extremely temperature sensitive that climate change is causing them to be all male. How to recognise the male: he makes small gametes. Female makes large gametes.

Peafowl. Sexual selection gone mental. How to recognise the female: she makes large gametes. And she’s not a massive freaking showoff, like the male peacock.

Mushrooms. Delicious. How to recognise the female: there are no females (‘there is only Zuul’). ‘Female’ and ‘male’ are predicated on two and only two differential gametes, and fungi don’t have them thingies, settling instead for equivalent gametes labelled +/-, or A/B, or yawn.

Straw-not technically a berry-berries. Delicious hermaphrodites. Genetic sex determination is polygenic and may reasonably be described as a (limited) spectrum. How to recognise the female part: it makes large gametes.

Head lice. Annoying buggers. The female transmits chromosomes she inherited from either her mum or dad; the male only transmits chromosomes he inherited from his mum. How to recognise the female: she makes large gametes.

To summarize, males make sperm, females make eggs.

The gender definitions for men and women are based on sexist stereotypes and circular logic. 

It comes down to this: https://m.imgur.com/utgjJoc

It's like saying "a dog is anything that identifies as a dog"

Or, "a square is anything we call a square".

It's tautological stupidity.

/r/politicsdebate Thread