Read the reference Ozy gave.

WIE: Sally Miller Gearhart, in her article "The Future—If There Is One—Is Female" writes: "[...] The proportion of men must be reduced to and maintained at approximately ten percent of the human race." What do you think about this statement?

MD: I think it's not a bad idea at all. If life is to survive on this planet, there must be a decontamination of the Earth. I think this will be accompanied by an evolutionary process that will result in a drastic reduction of the population of males. People are afraid to say that kind of stuff anymore.

Admittedly, this can be interpreted as sex selection of gametes and embryos, not disappearance of currently living people.

Your model of feminism is probably wrong. Feminists are varied and complicated. Some parts of feminism are completely rotten and people in them claim that all porn is rape, that rape of men doesn't matter, that no woman enjoys blowjobs. In particular, Mary Daly said some awful things about trans people, and refused male students in her classes.