An elaborate fraud.

"Across the country, ideologues who deny the biological reality of sex have increasingly used legal and other socially coercive means to permit men to self-identify as women and gain access to intimate single-sex spaces and activities designed for women," and so "It is the policy of the United States to recognize two sexes, male and female." The White House. The belief in gender fluidity may have risen from the 'nature versus nurture' debate, based on arguments that "human individuality - personality traits, intelligence, preferences, and other characteristics - must be based on either genes people are born with or the environment in which they grew up." The differentiation between male and female begins after eight weeks of pregnancy and is influenced by whether the fetus is genetically 46XX, which is female, or 46XY, which would make a male. Britannica. No amount of nurture after birth can change the structure of a human being. You can encourage girls to become top class engineers or scientists (Microsoft) but you cannot change ovaries into testicles. Modern transgender is completely different from cross-dressing which has been known for millennia (wikipedia). Perhaps, the most famous was Portia in The Merchant of Venice, who dresses up as a male lawyer, (BBC) because women were barred from practicing law in Italy until Lydia Poet qualified as a lawyer in 1881 (wikipedia). She was admitted to the bar in 1920 at 65 years of age. Physical transgenders were not possible until recently because the male hormone testosterone was discovered in 1935  (online- library), and the female hormones estrogen was discovered in 1923 (Science Direct) while progesterone was isolated in 1934 (wikipedia). Breast enlargement in men, or Gynecomastia, can be physiological or due to a wide range of drugs and diseases. Mayo Clinic. Administering female hormones to men will cause gynecomastia but will never create a functioning female with a uterus capable of pregnancy. Also, hormones are extremely potent and can cause serious side effects. Estrogen is well known to increase the risk of blood clots in arteries and veins in women and can cause sudden death due to pulmonary embolism. pmc.ncbi. Progesterone, used in hormone replacement therapy after menopause, has a long list of serious side effects. Medline Plus. If naturally occurring female hormones can cause such serious problems in women they can only be extremely harmful in men. A physical male cannot be turned into a functional female nor can a woman become a man. Therefore, the whole trade in transgender conversion is an elaborate fraud, a massive con trick on vulnerable people who may feel inadequate or unattractive in their bodies and think that they will be more comfortable if they change their sex. Like the Repressed Memory Syndrome scam in the 1980s where girls were brainwashed into accusing their fathers of sexual assault when they were children. Psychiatrists were made to pay. wikipedia. Transgender treatment is extremely expensive (CNN) and this has attracted unscrupulous charlatans making money out of dangerous experiments on vulnerable people. All those involved in this bogus trade should be prosecuted and doctors who are violating the first principle of medicine, which is do no harm (Harvard Health), must be struck off. One may disagree with Trump's policies but in this he is right. One hundred percent.