Echols is essential reading for an understanding of the America Progressive movement (especially chapter 6). Basically, her argument is that a Quasi-Religious Authoritarian wing of feminism took over radical feminist politics in the 1970’s. This wing of Puritan Feminism revived many of the themes of Female Moral Superiority and Innate Goodness that had motivated the 1890’s victorianization of morality in the Puritan Diaspora.  

(Echols page 224)

Daring to be bad: radical feminism in America, 1967-1975‎
	Alice Echols - 1989 - Social Science