One is a choice and the other is a physical abnormality. These are 1600 crackpots, not "scientists".
If you go to the linked article, there is another link to the letter with the signatures. A bunch of Ph.D.’s ...including climate, ecology, anthropology, sociology, women’s studies(!); psychology & others. A few funny ones like astronomy...whaaaa? A tiny handful of M.D.’s.
In other words, the usual suspects.