*puts on faux Freud jacket and starts smoking cigar... which is just a cigar!
*
If everyone is special then no one is, if transwomen are actual women then being a woman is a choice you can make and so its no more special than being a Vegan or Democrat.
The whole transgender argument basically says that a bloke can fork out some money for surgery and hormones, think of themselves as a woman and become an actual 'woman'. BAM!, turns out the wonderful, mystical awesome power of being a WOMAN (hear her roar!) can now be acquired by men.
To make it worse, these new 'women' will now kick other womens arses in sport, denying naturally born women achievement in the competitive safe spaces which they've been demanding equal appreciation and pay for decades in.
So what are Feminists who have a problem with this to do? say "oh they're not real women because they can't have kids!"? good luck with that, Feminists have been waging war on motherhood for decades now saying how sexist it is to focus on that aspect of womanhood and how strong women don't even need kids! Celebrate abortion! And thanks to the intersectional bullshit totem poll these new 'women' at less than 0.1% of the population and with a side flavour of societal unacceptance, being gay and increased chance of mental illness are higher up the oppressometer pole than most women are.
In short if you accept that transwomen are actual women then you deny that being a woman is anything but a choice, in which case you're not that special anymore.
Now if folks are going to argue that transpeople have certain biological markers or brain biology that makes them demonstrably proper women that just need surgical and hormone help to set right to correct the dysphoria then for the sake or argument lets say 'okay'. But unless they're arguing that transpeople
without these features are not really the gender they purport to be then you're stuck back at the above issue I noted for at least some.
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Another reason why it looks like Feminsists in particular have a hard on (heh ) for transwomen is that there is a corresponding lack of anti-pathy towards transmen. And so the criticism that stands out is theirs, like a loud voice in a quiet room. For a few reasons.
1) Numbers. Transgender folks are a tiny proportion of the population already receiving a massively disproportionate amount of attention, but the great majority of such people are men wishing to become women.
2) Men don't feel threatened or even mildly inconvenienced at all by some woman claiming to be a man and wanting to be treated like one. If she is growing facial hair and otherwise looking unattractive that takes out any sexual tension. Physically they will gain no advantage and any social leeway they would be handed as a woman in a male environment is voluntarily forfeited. So most men don't give a shit about this sub-category wanting to 'join them'.
3) Frustration. Feminists have no real way to attack them
without running up against the logical endpoints of their own intersectionalist ideology, this frustration magnifies the fault lines which divide the 'feminist' camp since it has been subsumed into the alphabet soup movement. If you're a feminsist then you must support LGBTQI issues now, and BLM and Climate change and be anti-Trump and ... etc. Look at the placards in your average aimless protest march these days. A hundred different 'issues' all marching together all 'allied' with eachother. You support all or you're out in the cold, kicked out of your own movement and de-personed. Feminism has been hijacked into the amorphous blob and TERF's are just wayward former soldiers, loyal to the previous regime, useful in the past but now they either need to toe the new line (which was always the line!) or be quiet "you over-privileged Karen!"
Edit: Btw I hate how the media has managed to ruin the term 'Karen'. It used to be just a funny meme for a woman with a particular dumb haircut who demanded to see the manager. Now it seems like its becoming just a way to attack white women who you disagree with, the Mayor of Chicago's use of it the other day to describe President Trumps Press Secretary was bizarre and shows how it is being changed.