The best thing is the TRAs did it to her themselves:
I want to make any characters I want without people shitting on me with comments like "you only make cis girls!!!!" or "what do you mean your lesbian character doesn't date people with penises???????"
They couldn't be happy that they had a supporter and ally, they had to keep harassing her to achieve total submission, and look what happened - they created a Terf! Their tactics are rubbish.