Steinem and their ilk hated marriage and anything associated with men and women getting together. They didn't want alimony, because they wanted the sexes to stay separate. Remember Steinem's infamous quote: a woman needs a man like a fish needs a bicycle.
Steinem was/is a cut above some of the others. Her point against alimony is that it turns women into children who can’t support themselves or make their own way in the world.
I also think opening the eyes of women to the fact that we live in a male-dominated world (if they didn’t know it already) was a good thing. It doesn’t make women hate men. It’s just a fact that goes into the hopper with everything else when you make your life decisions.
Steinem is straight and very attractive and eventually got married. I wrote to her one time trying to start a dialogue on abortion but she never answered.