@nolongersurprised
I’m going to add as well that’s it’s fucking disgusting to use “well, CAH” as an explanation for healthy people deciding they want to “be” the opposite sex.
Classic, salt-wasting CAH is life threatening before it’s identified. There will be life-long medication and the risk of cardiovascular collapse at times of stress. Hormone levels will normalise with treatment but the genital changes are permanent.
For a healthy trans individual, without this disorder, to cherry pick some aspects of it, wildly speculate and overreach and say, “yeah, me too” is abhorrent
Agree, it’s disgusting.
There have also been studies on trans people looking for variations in sexual development which have unearthed exactly nothing.
The whole argument that “trans is biological” is based on the possibility that there is a biological marker waiting to be discovered that will settle this once and for all. It’s pie in the sky stuff.
But let’s for one second imagine it to be true. I for one would welcome it! Let’s get a blood test sorted. Then let’s get all the people who say “I am trans/a woman/non binary because I say I am” and get them all to take the test. Will be fascinating to see the results.
I vote we test all the middle aged male AGPs first, see where that gets us 
. Let’s see what Stonewall’s trans umbrella looks like once we have a confirmatory test to see who falls under it. Will the cross dressers pass the test? How exciting to find out! Let’s watch the whole movement destroy itself while it argues who is “true trans” (like they do already anyway but with something to actually go on).
Let’s get a test in place for children to determine whose bodies should be rendered sterile and asexual by puberty blockers and cross sex hormones, rather than just their expressed feelings at the age of 12 or their adherence to diagnostic criteria that demand a belief in sex stereotypes to get a diagnosis.
Let’s study if the marker is positive and then negative years later in the thousands of detransitioners who regret their decisions and the damage done to their bodies.
Let’s see if the marker is “half” positive in people who feel “non-binary”.
We will still continue to keep spaces segregated by sex, not “newly discovered invisible marker of transness” of course, because a marker in blood that explains an “identity” doesn’t remove the male body, effects of testosterone, male socialisation, and male rates of offending.
But it would be fascinating to watch the fall out 👀 🍿
However, given that this is science fiction, let’s not waste energy on it. Let’s not make any changes to society until such marker is discovered, then we can have a debate about it. Let’s pay attention to the perfectly good markers we have now that determines our sex, which are evident to everyone. Let’s absolutely not start making changes to society on the basis that some people think vaguely that transgender might be biological that might become evident in the future so ergo we should mess everything up now in anticipation of that, because that’s just nuts.
When you’ve got something to actually go on, then we can talk .