MTF are gross, but estrogen barely alters their bodies.
FTM on the other hand are so goddamn sexually repulsive to people who are attracted to women. The hairy breast and asses, full body werewolf like body hair. Pumped up with so much testosterone that they stink more than your average women which clings on to the carpet of body hair like a miasma. Arm sheered of flesh to create a simulacrum of a penis. Botched mastectomies, hysterectomies, and at times the complete removal of the entire reproduction and sexual anatomy. Seeing the bodies of women so grotesquely altered is a mind fuck. Their bodies will never be the same, they will always be disgusting to the average person.
MTF at least find sexual partners within other MTFs and chasers, but hardly anyone is chasing a medically transitioning FTM.