Let’s say i want to look at life expectancy from birth for females. I need to know what age previous females died at, regardless of whether they identified as male in order to make an accurate estimate.
We don’t have enough data to know, though. My risks changed to masculine when I transitioned female to male, yet my life insurance insists on placing me in the lady category. Far be it from me to point out the latests studies show I have increased risks, just like cisgendered men.
The truth of the matter is that if you placed us in the gender we were assigned at birth, you are getting really skewed data. We do not have the same risks as cis gendered people. Hell, just the risk for assault and murder alone are through the roof for us. Then add in long term HRT for those medically transitioning, and that’s going to put us more in line, but not exactly, with cis gender people of the same gender.
So the argument that demographic information needs to be accurate, isn’t going to work because we do not have the same life expectancy, or risks, as the gender were assigned at birth, nor our actual gender.