I think the best way to answer that question is to talk about the cultural shift that happened in 2020, because transgender ideology and Covid are inextricably linked. Normally, doctors operate by the authority of the professional societies that govern our specific practice. That worked because the individuals in those institutions were reliable, intelligent, and thoughtful. But with Covid in 2020, we started getting medical decrees without peer review or evidence—you saw this with masks, social distancing, and emergency-use authorizations. These decrees were expressed as something that everyone had to do, without justification based on sound science. The other thing was censorship. If you were to ask questions or express doubt about these medical decrees, you would be ostracized within your department, and you stood a good chance of being publicly humiliated, severely reprimanded, or fired.
https://www.city-journal.org/article/transgender-ideology-and-the-corruption-of-medicine
That’s when transgender ideology really took off. Within these academic institutions, so-called experts in the field of transgender medicine would simply declare that puberty blockers and other interventions were the gold standard of care. The evidence to support this is completely fraudulent, but no dissent was permitted. Everyone within the medical community knew that if he questioned transgender ideology, he would suffer the same type of repercussions that had happened during Covid. The best way to describe the environment would be as an authoritarian, censorious culture that discourages any meaningful debate and encourages the demonization of anyone who asks questions.