A person whose body underwent the female development path instead of the male development path during embryonic and fetal development, which may also include in some cases persons whose bodies underwent partial development under either or both paths.
But they are not as easily controlled and shoved out of the way if our plutocratic lords want to just cut them off.
Happy people are also happy bc they have more security and rights that they have the means to enforce. That is terrifying if your goal in life is to squeeze as much as you can out of others.