"... is to engage in a form of open inquiry and investigation, opposing the dogmatic social positions that seek to stop and reverse emancipatory change. And yet, 'gender studies' is opposed as 'dogma' by those who understand themselves on the side of 'critique.'... Stoked by fears of infrastructural collapse, anti-migrant anger and, in Europe, the fear of losing the sanctity of the heteronormative family, national identity and white supremacy, many insist that the destructive forces of gender, postcolonial studies, and critical race theory are to blame. When gender is thus figured as a foreign invasion, these groups clearly reveal that they are in the business of nation-building. The nation for which they are fighting is built upon white supremacy, the heteronormative family, and a resistance to all critical questioning of norms that have clearly restricted the freedoms and imperiled the lives of so many people.... Indeed, gender comes to stand for, or is linked with, all kinds of imagined 'infiltrations' of the national body – migrants, imports, the disruption of local economics through the effects of globalization. Thus 'gender' becomes a phantom, sometimes specified as the 'devil' itself, a pure force of destruction threatening God’s creation... Let’s all get truly critical now, for this is no time for any of the targets of this movement to be turning against one another. The time for anti-fascist solidarity is now."
She's using the metaphor of ideas as disease, a very common metaphor, and I wonder what is it that makes other people's ideas a disease and not your own? In any case, there's a problem with relying on metaphor! You can see that there's deep-seated unease — unease, not disease — about unfamiliar others and their strange ideas, but it's everywhere, and if you rally your own side by saying look at those awful people over there with their disgusting ideas, you're stoking the fears.
What does it mean to call on us to "get truly critical" when — in the same sentence — Butler tells us to coalesce into a single powerful movement with members who do not challenge each other's ideas? She started by calling it "a form of open inquiry and investigation, opposing the dogmatic social positions" but ended by saying don't you dare be open and inquiring — we need to close ranks.