The thread on JKR has plenty of examples. The blog from Linehan I just cited linked to an incident, so I don’t know what you mean. If your belief that he’s wrong hinges on the assumption no transwomen have used their access to hurt women and girls, then it’s time to reassess your belief.
I don’t know Linehan’s rationale for saying TWAW is an existential threat to women, but I do know that redefining “woman” in such a way that permits any male to call himself one and not be questioned means harm will come to women.
This thread should stay focused on cancel culture so I’m not going to litigate gender ideology anymore here.