There is not only no free state which would now establish it, but there is no slave state, which, if it had had the free alternative as we now have, would have founded slavery.
Bio: John H. Gagnon was a pioneering sociologist of human sexualities wrote and edited some 15 books and over 100 articles. His key work is Sexual Conduct: The Social Sources of Human Sexuality, which he co-authored with William Simon.