Fwiw I'm non discriminatory.
I go after anyone who spouts bollocks about health and can't understand stats and data well.
Now about Margaret McCartney.
One of the things she goes on with regard to medicine is the trouble with quantifying and defining harm.
Now the trans lobby use a singular method to do this: its called the suicide rate. This is an easy one to understand and quantify (in theory. In practice the Samaritans have a lot to say to the contrary about the problems of suicide stats).
Yet there is more than one way to define harm. Harm can come in multiple forms and can be easy and hard to identify especially if its not something easy to count or isn't framed in a particular way.
Just because its not shocking and easily packaged up in a nice statistic that people know about doesn't mean its not there.
McCartney talks a lot about this in the context of medicine and how harm can sometimes be hard to be pinned on a particular cause, because of how it manifests and ingrained narratives within society make it difficult for hidden harm to break out and be properly recognised with the gravity it deserves. She talks of how these arise from political prioritization and lobbying.
Ah the cold heartless rational of scientists.