There is a lot going on in that article and it makes for interesting reading.
I suppose my first point is what gender is being taken to mean here, and that may be why she has it in inverted commas. But more broadly, I think there is something in what she says about a concept becoming many things to many people, whether they are arguing for or against it.
I mean, if you took apart the layers of her argument and the ways different groups are using the concept of gender, it would lack consistency - therefore it is not surprising that she says ‘anti-gender’ activism lacks consistency. There are many layers of what is going on here.
I have long thought there are at least five different ways people use the word gender - legal gender which can be changed, gender identity which is seen as internal to the individual, as a synonym for biological sex, as a way of coding masculine and feminine, and as a way of describing the power hierarchies which operate along sexed based lines. These are distinct but not mutually exclusive and often overlap. So the very foundations of discourse about gender are confusing, and this lends it to being used by groups in contradictory ways, for or against. (I just realised she is possibly using gender in another way, as the force which has pushed against the power hierarchies which operate along sex-based lines (whereas I would have called that feminism and gay right’s activism)).
But in her argument, it seems to me that gender has also almost become a proxy for post-colonial (neo?)liberal (or libertarian?) democracy, if that makes sense. Individual freedoms and autonomy have become bound up with the concept of gender, and that is why any attempt to put boundaries around what is appropriate are seen as fascist or authoritarian in her argument. (To accept this, you also have to accept that gay and women’s rights have also been won and upheld through ‘gender’ and not activism). But then it also makes sense why she argues that ‘gender critical’ people should pull together with trans, non-binary or gender queer people to uphold these freedoms against authoritarian governments who threaten individual freedoms and autonomy for all minority groups, including women.
That is how I understand what she is saying.