From the NY times. Yes he invented feminism and the sexual revolution
Another feminist critic, Susan Brownmiller, debating Mr. Hefner on a television talk show, asserted, “The role that you have selected for women is degrading to women because you choose to see women as sex objects, not as full human beings.” She continued: “The day you’re willing to come out here with a cottontail attached to your rear end. …”
^Mr. Hefner responded in 1970 by ordering an article on the activists then called “women’s libbers.” In an internal memo, he wrote: “These chicks are our natural enemy. What I want is a devastating piece that takes the militant feminists apart. They are unalterably opposed to the romantic boy-girl society that Playboy promotes.”
The commissioned article, by Morton Hunt, ran with the headline “Up Against the Wall, Male Chauvinist Pig.” (The same issue contained an interview with William F. Buckley Jr., fiction by Isaac Bashevis Singer and an article by a prominent critic of the Vietnam War, Senator Vance Hartke of Indiana.)
Mr. Hefner said later that he was perplexed by feminists’ apparent rejection of the message he had set forth in the Playboy Philosophy. “We are in the process of acquiring a new moral maturity and honesty,” he wrote in one installment, “in which man’s body, mind and soul are in harmony rather than in conflict.” Of Americans’ fright of anything “unsuitable for children,” he said, “Instead of raising children in an adult world, with adult tastes, interests and opinions prevailing, we prefer to live much of our lives in a make-believe children’s world.^