>>40434636>detrans women become honsthis is the real reason. even being on testosterone for a few months can fuck up a woman's voice, give her more body and facial hair permanently (without surgery, laser, electrolysis), and lead to fertility issues.
the only potentially permanent things estrogen does to a guy is make him grow boobs (that shrink without E, and can be surgically removed if too big still), cause some shrinkage, and ED/fertility issues but those also usually fix themselves after a few months.