When I read that some trans activists define 'woman' as 'anyone who is feminine or performs femininity' I looked up some definitions of femininity. They include being passive and submissive and emotional and nurturing.
The sort of stuff old time feminism used to fight against as those beliefs are used to keep women subjugated and away from decision-making roles.
Not sure what feminine expression might be. Short skirts, high heels and makeup? What human rights does a group defined by that lack?
My point is that the oppression of women globally is based on sex or assumed sex. It is not based on dress or such, so the baby here is thrown away while the bathwater is kept.