Well, there’s now a conflict of rights between sex-based and gender-based identities.
When you say “It’s truly amazing and wonderful that we can do this,” you’re expressing a kind of euphoria [1] over becoming more feminine, but to many female people being feminine isn’t particularly what they want to be or to them what makes someone a woman - a woman is just an individual who happens to be female.
[1] “the experience of pleasure or excitement and intense feelings of well-being and happiness”.
I’ve no problem with people who wish to live in what’s called ‘a gender non-conforming way’ but I do have issue with the view that (for example) “To be identified as woman one must conform to one of a subset of appropriate genders”.
Here’s a thought experiment - if typical female people started behaving more like your father, brother, uncle etc now act - if as a social change the ‘gender’ associated with females became masculine - would you still identify as a woman?