Here’s what the science actually says https://whatweknow.inequality.cornell.edu/topics/lgbt-equality/what-does-the-scholarly-research-say-about-the-well-being-of-transgender-people/

What these people say? It’s not science. It’s bias, wearing a veneer of science, so that people who don’t like the idea of trans kids existing can point at something other than their own internal discomfort.