[sverona]

This is a base rate error. There are so many more trans people recently because it became socially acceptable to be openly trans somewhere around 2014. The watershed moment was probably Caitlyn Jenner on the cover of Time.

Even among those of us who detrans (on the order of magnitude of 1%), at least 95% do so not because they were wrong, but because coming out invited reprisals which made their life too difficult to continue (losing home, family, job, etc.) The first study I was able to find puts that proportion at 97.6%. [0] My Fermi estimate puts your "so many" at one in 5000 or so.

[0] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8213007/