Language is a powerful way of enforcing this. If this seems like a logical and natural dual system, it s in part because language has made it so. We see the system as fixed and natural, if not God-given. You deviate at your own risk. Linguistic abuse is a special threat to the gay and transgendered.
Some insults mean different things, depending on the subject.
Insults develop their meanings in the context of this gender ideology. Because different gender roles are assigned to men and women, men and women are derided for different reasons. In the case of pig , they re chided for being sloppy or racist. Women suffer from rigid beauty ideals, so pig has come to mean a woman who doesn t look the way men want women to look. Conscientious writers may be using disparaging terms without even realizing it.