“Transgenderism” or “gender identity disorder” is based on an actual, rare, psychological condition known as gender dysphoria. No one is sure how many individuals are actually afflicted with the condition. The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) — the Bible for psychiatry — estimates that about 0.005% to 0.014% of people assigned male at birth and 0.002% to 0.003% of people assigned female at birth are diagnosable with gender dysphoria.
