Why do psychologists deliberately leave out any study of gynephilic transgenders in their samples?

They don't do such studies because it reveals that homosexuality is a mental disorder, that can be inflicted upon any one through the process of traumatic sexual experiences during childhood. Gays ignore three striking things, n o peer reviewed studies were conducted to remove homosexuality as a mental disorder, homosexual is classified a ego-dystonic and 75% of children diagnosed with a gender identity disorder are homosexual. No one has to propagate heterosexuality as the norm, your parents are evidenced of that, however we do find mental disorders throughout the population at higher numbers that the 1-3% homosexuals in the population.