People willing to other entire groups on the actions of a minority, to dismiss them, to say none of them will ever be women, to dismiss anyone who doesn't toe the line of thinking. That's extremist behaviour too.
But none of them will ever be women. That's biology for you. Damn that pesky real world, so transphobic.
Transwomen are transwomen, and that's fine. We should celebrate non-conforming people, make sure they're not harassed or discriminated against, while recognising that there are a small minority of situations where women need protected spaces in virtue of their biology or the way their biology is leveraged by a society in which sex-based violence is endemic. So - women's sports, women's prisons, rape crisis centres, domestic violence shelters - these need to be segregated by actual biological sex.
Other than that, present, dress how you like, call yourself what you like. That's fine. It makes you yet another variation on the rich and varied tapestry of human life, every bit as worthy as all the other humans on the planet, every bit as deserving of human rights. But you don't get women's rights, because they're there to protect us in virtue of situations that arise because of our biology.