this isn't because the filthy mtf's are evil btw this is because masculinity is seen as evil, and thusly, the FTM, going from female-to-male, must either be a gender traitor, or actively seeking to Fix Men from the Inside, because Men Are Evil.
A common theme in FtM spaces is it’s their responsibility to fix manhood by being female levels of conscious, empathetic, emotionally expressive, etc. Meanwhile in MtF spaces they’re simply concerned with being as hot as possible.