1. The study on Rapid-onset gender dysphoria could be flawed -- it asked parents, and not youths themselves, which might skew the data on the prevalence and incidence of gender dysphoria
2. The number of transgender youth in the US is small[1], estimated at around 300,000. A small absolute increase would result in a large relative increase, even though transgender-identifying youth are a small percent of the population
3. Improved acceptance, awareness, diagnostics and treatment may result in transgender youth seeing more options for themselves, and thus being more public in announcing their status or seeking treatment. It's not that more people are trans or genderfluid, but rather that they're more comfortable being public with their status
[1] https://williamsinstitute.law.ucla.edu/publications/trans-ad...