There are well recognized health risks of certain sexual behaviors, practices, and lifestyles.
A full and accurate text that comprehensively covers the risks common to the LGBT lifestyle is:
"Health Hazards of Homosexuality: What the Medical and Psychological Research Reveals" available in paperback and online from Amazon.com.
Other sources of up-to-date information are available from the Centers for Disease Control (CDC) and can be accessed online from CDC.gov. Go to this link and follow the menu to see various statistics compiled by the CDC regarding the risks: https://www.cdc.gov/hiv/basics/index.html
The American College of Pediatricians has excellent resources to address the disinformation about "transgenderism" and sexual "orientation" in youth. Go to: https://www.factsaboutyouth.com