I think you are talking about something which is perhaps most unambiguously referred to as "radical feminism."
Feminism is a very, very, very, very, very, very common-sense idea. It is the default. If you don't agree with it, the burden of proof is on you to explain why. If you say "I'm a feminist," you haven't said much.
If you say "I'm not a feminist," whoa...
That's pretty sketchy.
You may agree or disagree about the linguistics here, but I'm just laying out the facts as I see them.
I have lots of complaints about all kinds of corners of the English language, but I accept that the English language and semantics in general are a "commons," and not necessarily something that I can just change because I agree or disagree with the way negation works in a particular context.
I disagree with all types of collectivism and the label feminist often is used by this kind of person, who believes simple abstract categories are more important than the complex, concrete individual. Your brand of feminism seems only marginally distant from pure individualism, and for that reason I upvote and comment here.
I can honestly say that I have been fortunate enough to have met and had varying depths of contact with wonderful, geeky women, and I wish there was more, because it makes my search for a good partner all that much more difficult. Feminism often gets muddled up with all kinds of crappy stuff like fascism, misandry, misanthropy in general, and I think that is not what it originally meant.
The earliest feminists were liberals, and notable early anarchists were involved in this, some were socialists, some libertarian, hell, all these labels get confusing as false me-toos get a benefit off riding the achievements of the pioneers, and certainly some very evil people have made much hay out of this movement to destroy the natural tribal and familiar bonds between people, even to promote the idea that humans are an inherently evil species, except for the slimebags promoting this nonsense.