I usually steel-man to the extent I'm practically arguing with myself.
Struggle to do it with gender though, the more you try to put it in non obscuring language, the more absurd it sounds. I do my best attempt at a steel-man and get accused of taking the piss.
I mean come on, help me out here.
Okay, they believe that everyone has an internal sense of 'gender', which is a kind of feeling that tells you how you relate to - either sex, or roles and fashions stereotypically associated with sex.
But I've already failed the test there because we're not allowed to mention that it's associated to either sex or stereotypes. But to steel-man more like it's presented by believers, I have to say it's a feeling of how you relate to gender, and I can't see circular logic as steel-anything.