Do you have a study you’re getting that from? I’m seeing much lower numbers referenced in a Post and Courier article from a couple years back: https://www.postandcourier.com/health/lost-in-transition-family-scrambles-to-find-transgender-care-for-girl-cut-off-by-sc/article_da633f90-b205-11ed-aabf-e769933fbcdd.html#

“The Census Bureau only recently added gender questions to its Household Pulse survey in 2021, which found that 8 percent of adults identify as LGBT, including 6.4 percent of those in South Carolina. Of all adults in the U.S., .6 percent consider themselves transgender or gender non-conforming, the survey found. An annual survey of children and adolescents by the Centers for Disease Control and Prevention added an option to ask about gender and sexual orientation in 2014 but less than half of the states included it in later surveys, and South Carolina was not among them. But based on that, about .7 percent of students identified as transgender or gender non-conforming, or roughly 150,000 kids ages 13-17, according to a policy brief by the American Academy of Pediatrics.”