Might help also to describe what you think feminism is, since it’s one of those terms that is overloaded.
I once had a physical therapist tell me she wasn’t a feminist because she thought women couldn’t be as physically capable as men when serving as soldiers, and seemed to believe feminism requires treating women exactly like men.
I told her I was a feminist because I believe in equal rights for men and women, an idea she did not seem so opposed to.
To be fair, the word feminist is super outdated, since it has the connotation of being for women because of the “femi”. Well… It kinda was during the feminist movements of the early 1900s, but that in itself was as a fight for equality.
Point is, I’d love a rebrand to something like “Equalist” or something better sounding but with the same connotations.
The term you’re looking for is an egalitarian.
https://en.wikipedia.org/wiki/Egalitarianism