Detransition is the equivalent of people who decided they actually aren’t gay. It’s rare enough to not make policies or be an ass about it, it’s super rare for it to go all the way to straight/cis and instead is typically “actually it turns out I’m bi/nonbinary”, and there’s a group actively funded and encouraged by the right wing, many of whom later retransition. It is a real phenomenon, but so is quicksand, both of which turned out to be less common in real life than certain media would have you believe