A lot of transmen were abused as children/teens for being trans. Thankfully less common now.
A lot of transwomen attempted to hide from themselves by adopting hypermasculine (and usually toxic) behaviors. This is both a cause of harm to other women and also a form of self-harm. Also, it was often a reaction to being abused as children/teens for being trans. Also thankfully less common now.
(I don’t know if it is/was common for transmen to engage in toxic hyperfemininity, only that if it is, it’s less culturally/socially visible.)
This is starting from the assumption that trans people aren’t really trans, taking the superficial details common to older trans folks (because only older ones have a long personal history to draw from) out of context, then coming up with motivations based on those superficial details to explain how trans people don’t real. In other words, the ususal TERFish nonsense.