Whereas in the case of accepting someone with anorexia's self identification as a fat person and their consequent intention to lose weight, everyone can see that the risk is that they become malnourished and die.
Yes, but ... surgery to get rid of perfectly healthy organs is something that frequently happens to trans people, and is a well known consequence of identifying as the other sex.
People are not concerned about that. Perhaps people really have to die for it to matter?
After all, if you are a bit chubby, people will be more than happy to confirm your mistaken belief that you are overweight and need to lose weight, and your health may well suffer as result of the diet, but feminists are more or less the only people who worry about body image issues.
So, perhaps the thinking is: "As long as no one dies, everything is alright"?
Sucides get used as "proof" why "misgendering" males who believe they are women is "literally killing" them.