The redefinition of the words that have had specific meanings for an awfully long time, and that still have those definitions for the vast vast majority of people here and over the world (in their language) is a massive act of appropriation.
The fact that the words being redefined are words that have been used by various rights movements to fight for change.
Words that still in law penalise certain groups.
Woman girl lesbian gay man. Homosexual. Female even. Really fundamental terms to describe large groups (half the population for girls and women) being unilaterally changed.
The arrogant imposition, insistence that the new definitions are the ones that must apply. Even though it makes a nonsense of women's rights, gay and lesbian rights issues, statements and activism.
That any attempt to describe these groups otherwise- rights for people who are assumed to have ovaries, rights for homosexuals. Are lambasted for being dog whistles, exclusionary etc.
We're not allowed any words instead of the ones that were well understood, clear, and still used that way by pretty much everyone.
Why are homosexuals and female people not to have any name as a group? How are we to organise and raise awareness about the many different issues we need to address, and that are specific to those groups, without any words?
I note that even media outlets and charities that say woman is a category for anyone who wants to be in that category. Still use the words with the original meaning for their fundraising and headline news.
When the BBC says girls in X country have been targeted in some way they mean sex. Vagina havers.
They never say children with vaginas have been targeted. They say girls.
So they don't take believe girl means any child who feels like a girl do they. Or they are not prepared to put their money where their mouth is. So they are liars, or they are cowards.
Also the fact that the words man and boy have not been subjected to the same level of outrage if they are used to mean male. Even on many things where the word woman has been erased.