06/22/2026
One of the most interesting things genetics teaches us is that biology is rarely as simple as the diagrams we learned in school. While most people have XX or XY chromosomes, s*x development is influenced by many interacting factors, including genes, hormones, receptors, and fetal development. We see real biological variation in conditions such as androgen insensitivity syndrome, congenital adrenal hyperplasia, and differences of s*x development, where chromosomes, anatomy, and hormone responses may not align in expected ways.
At the same time, it’s important to distinguish between biological s*x and gender, which are related but not identical concepts. Biology helps explain the diversity of human bodies, while psychology, neuroscience, culture, and personal experience all contribute to how people understand and experience gender.
What science consistently teaches us is humility: human development is extraordinarily complex, and simplistic explanations rarely capture the full picture. The existence of variation doesn’t erase biological realities—it reminds us that nature is more nuanced than the binary models many of us first learned.
People love to yell “biology” when what they really mean is the best they have to argue with is the simplified version they learned before they were old enough to drive—yeah, middle school.
XX and XY are part of the story, but they are not the whole story.
Human development involves chromosomes, hormones, receptors, genes, anatomy, fetal development, puberty, and variations that do not fit neatly into the two boxes people keep trying to force everyone into.
And when people say everything outside of XX or XY, “those are just genetic disorders” or “freakish anomalies,” they are not making the point they think they are. Those “disorders” are more common than people with red hair.
A genetic disorder is still biology. A rare variation is still biology. A body that develops differently is still a human body.
The point is not that most people are XX or XY. The point is that XX and XY do not explain every human body.
So when someone calls LGBTQ people “mentally ill,” “delusional,” or “freaks,” they are not defending science. They are exposing the personal limits of what they understand—and know.
Rare does not mean unreal. Medical classification does not mean moral defect. And “disorder” does not mean someone’s existence can be dismissed.
The real world is more complicated than middle school biology.
That does not make people broken.
It means the your lessons (and knowledge) about biology and the miracles of the human body are wildly incomplete.