The differences between the sexes is much less than people like to pretend. Every cell in your body has different modes it can operate in. Many, perhaps most, cells have estrogen-dominated and testosterone-dominated modes. If you change the dominant hormones in the body, every cell in the body switches between these modes. Trans people who medically transition are simply taking advantage of the body’s existing mechanism of secondary sex characteristics.

Ultimately, any person could have a male- or female- typical phenotype. If you put the right hormone injections into a fetus at the right time of pregnancy, an XY fetus would be born with a vagina and a uterus. And the opposite is true as well. These conditions sometimes happen naturally with intersex conditions. Every human body has the potential to develop along a male- or female-typical path. It’s just a matter of what hormones are passing through the body at what stage of development.

But race? There’s no comparison. Cells don’t have different expression modes that correspond to different racial phenotypes. There are no “black hormones” that a white person could take to gain many of the characteristics of black bodies. There is simply no equivalent to the medical transition process many trans people undergo. There is simply no equivalent to the fundamental rewiring of the body that occurs on a cellular level with trans medical treatments.