"The American College of Pediatricians urges educators and legislators to reject all policies that condition children to accept as normal a life of chemical and surgical impersonation of the opposite sex. Facts — not ideology — determine reality."
That's a crank group you're quoting. Genuine, well-respected medical professional associations, like the American Psychiatric Association and the American Academy of Pediatrics (the similarity of the ACP's name to theirs is a complete coincidence, I'm sure 
), acknowledge that gender dysphoria is a real thing and encourage it to be treated.
Who said gender dysphoria wasn't a real thing? I thought the point of that quote is that we're treating it incorrectly.