Communization and the abolition of gender
"Present day civilization makes it plain that it will only permit sexual relationships on the basis of a solitary, indissoluble bond between one man and one woman, and that it does not like sexuality as a source of pleasure in its own right and is only prepared to tolerate it because there is so far no substitute for it as a means of propagating the human race." Sigmund Freud, Civilization and Its Discontents