A few days ago someone started a thread querying about what pronouns should be used by persons with DSDs and by others when speaking of them. The thread was soon deleted. For good reason, coz the OP's point of view was very offensive.

Still, I think there's good reason to show the exchange I had with the OP on that thread as a cautionary tale about the callousness and dangers of using the rare, complex medical conditions that some persons suffer in arguments either for or against today's gender ideology.

Here's the exchange. My comments are in italics.

I'm just thinking about how a person looks like a female, but has a dick and has XXXY chromosomes should address themselves.

I responded:

Persons with XXXY chromosomes have a difficult enough time as it is in life without claiming they look female, and suggesting they should be seen and spoken of as not male or as less male than other persons of their sex. Persons with XXXY chromosomes are 100% male with a complex medical condition that affects only males. They deserve compassion as all persons with congenital diseases and developmental disorders and anomalies that mark them as "different" do, which means not using them as props in convos and arguments about gender ideology.

48,XXXY syndrome is a chromosomal condition in boys and men that causes intellectual disability, developmental delays, physical differences, and an inability to father biological children (infertility). Its signs and symptoms vary among affected individuals.

Most boys and men with 48,XXXY syndrome have mild intellectual disability with learning difficulties. Speech and language development is particularly affected. Most affected boys and men can understand what other people say more easily than they themselves can speak. The problems with speech and communication can contribute to behavioral issues, including irritability and outbursts or temper tantrums. Boys and men with 48,XXXY syndrome tend to have anxiety, a short attention span, and impaired social skills.

Given their difficulties with verbal communication, raising the issue of how these boys and men "should address themselves" strikes me as inappropriate, insensitive and downright offensive.

48,XXXY syndrome is also associated with weak muscle tone (hypotonia) and problems with coordination that delay the development of motor skills, such as sitting, standing, and walking. Affected boys and men tend to be taller than their peers, with an average adult height of over 6 feet.

Other physical differences associated with 48,XXXY syndrome include abnormal fusion of certain bones in the forearm (radioulnar synostosis), an unusually large range of joint movement (hyperextensibility), elbow abnormalities, curved pinky fingers (fifth finger clinodactyly), and flat feet (pes planus). Affected individuals may have distinctive facial features, including widely spaced eyes (ocular hypertelorism), outside corners of the eyes that point upward (upslanting palpebral fissures), and skin folds covering the inner corner of the eyes (epicanthal folds). However, some boys and men with 48,XXXY syndrome do not have these differences in their facial features.

48,XXXY syndrome disrupts male sexual development. The penis is shorter than usual, and the testes may be undescended, which means they are abnormally located inside the pelvis or abdomen. The testes are small and do not produce enough testosterone, which is the hormone that directs male sexual development. The shortage of testosterone often leads to incomplete puberty. Starting in adolescence, affected boys and men may have sparse body hair, and some experience breast enlargement (gynecomastia). Their testes typically do not produce sperm, so most men with this condition are infertile.

https://medlineplus.gov/genetics/condition/48xxxy-syndrome/

It's regressively sexist to suggest that males with serious medical problems are somehow female. It takes us back to the dark ages when females were basically regarded as "defective" or deficient males.

Zach Elliot at the Paradox Institute has done an excellent series of clear, short videos explaining DSDs in general, and is doing a series giving each specific DSD condition its own dedicated video. He also provides written transcripts of each video in PDF form, and lists all his sources.

https://www.theparadoxinstitute.com/pi.html

I suggest following him on Twitter too. He's quite bright and an excellent communicator.

My own approach - and advice - is to avoid using the term "intersex" altogether, and instead use other terms such as DSDs (differences/disorders of sex development), VSCs (variations of sex characteristics).

My own approach -and advice - is also to avoid making generalizations about DSDS, a group of very diverse medical conditions that really don't belong lumped together. DSDs are as different to one another as, say, blood disorders are. Just as there's a huge difference between hemophilia, leukemia, hereditary hemochromatosis, iron deficiency anemia, pernicious anemia, thrombophlebitis and so on, there's a huge difference between all the various DSDs.

Moreover, most DSDs are sex-specific. In other words, they occur only in either males or females. There are some that affect the development of male humans, and others that affect the development of female humans. No one with a DSD is in-between sexes or a combination of sexes. All are male or female.

The OP said

I tried looking up the characteristics of intersex people because people say "they share the caracteristics of both sex", the best I get is they're either sterile, or their secondary sexual characteristics do not work, or they have an incidents where they are developong those secondary characteristics have begun functioning when they hit puberty

To which I said

None of the generalizations in that sentence apply to all of the conditions commonly lumped together under the term "intersex" or DSD.

Many TRAs use the intersex condition in their arguments.

Which just goes to show they don't know what they are talking about. Fact is, there is no such thing as "the intersex condition."