The only thing that I and every single other woman on the planet have in common is our sex. That physical reality is what makes us women. The oppression faced by women is because of our sex, and gender roles reinforce the subjugation of women.
The degree of subjugation varies over time and space but even in the wealthy West women are still fighting for liberation. Female socialization keeps us back, trains us to perform femininity.
Feminism is and always has been about women and our bodily autonomy. Women's issues are rooted in our physicality. A little girl can't identify her way out of forced marriage or FGM. The two women a week murdered by a partner or an ex-partner in the UK can't escape their fate by declaring themselves to be trans.
Feminists see gender as one of the main tools of female oppression. We reject it. This is why feminists,are described as "gender critical". The trans agenda is quite the opposite. They raise gender up, to make it more important. They talk as if long hair and heels makes you a woman. A lot of the trans activists are fetishists, and the porn they consume reveals that they see being a woman as intrinsically humiliating and demeaning.
Feminism isn't about men. They can support feminism but it's never going to be about them. And this isn't affected by transition. TW have no place in feminism, apart from as support should they wish it. Happily there are a few, but most TW seem actively to despise women, even to hate us.
I know loads of lovely men, and none of them display the aggression and toxic masculinity that comes pouring out from the typical trans activist. They are so unlike women it's ludicrous.
I feel for the quiet gay transsexuals who try hard to fit in with women but I have no time for the majority who campaign under the trans umbrella. Most of those who now call themselves trans are just cross dressers. They are actively anti-feminist and are creating no end of problems for the lesbians so many of them pursue.
Sorry, Mephistopheles, it's a bit of a screed.