About 20 years ago I wrote a paper comparing second-wave feminism to third-wave feminism for an anthropological theory course, and during my research I came across an extreme feminist who declared that women can only be liberated when every one of them becomes lesbian, as men are are not needed for women to achieve orgasm and therefore serve no purpose at all to women (apart from donating sperm, I assume, but I can't remember if that was mentioned). I can't give you the author's name as I no longer have that paper, but I do remember laughing at the extremity of her views.
Sadly, it seems to me that the term feminism is often linked with these kinds of extreme views, and that therefore many women do not wish to call themselves feminists. It's the whole concept of feminists as hairy man-haters, incapable of rational thought. I've come across "feminist" being used as an insult, FFS.
Am I a feminist? Hell, yes. I advocate for equal rights for women and equal respect for women so that my daughter will hopefully have a better life, the same way I advocate for the rights and respect of people with special needs so that my younger son will hopefully have a better life. Thanks to people like de Beauvoir women are better off than they used to be, but there's still quite a way to go.