Wikipedia’s section, for anyone interested:

In 2012, Lewis coined what she herself referred to as "Lewis's Law": "the comments on any article about feminism justify feminism".[29] In January 2013, Lewis edited a week of articles dedicated to transgender issues in the New Statesman, featuring articles by transgender and non-binary writers including Juliet Jacques, Jane Fae and Sky Yarlett. In the introduction, she wrote: "For anyone interested in equality, it should be obvious that trans people are subject to harassment simply for the way they express their gender identity."[30]
While supporting transgender people's right to freedom from harassment and abuse,[31] in July 2017, Lewis wrote about her concerns that gender self-identification would make rape shelters unsafe for women and would lead to an increase in sexual assaults in women's changing rooms, writing: "In this climate, who would challenge someone with a beard exposing their penis in a women's changing room?"[32][33]
In response to criticism for those comments, Lewis said "I've had two tedious years of being abused online as a transphobe and a 'TERF' or 'trans-exclusionary radical feminist'—despite my belief that trans women are women, and trans men are men—because I have expressed concerns about self-ID and its impact on single-sex spaces".[34] In November 2020, game developer Ubisoft removed two in-game podcasts from Watch Dogs: Legion that featured Lewis due to the comments.[35][36][37]