How can someone remain gender critical without crossing the line into transphobic bigotry?
by definition, "gender critical" is just a way transphobes self-identify to make themselves seem as if they aren't awful human beings. this may come as a surprise, but they are still awful human beings.
"Gender critical" s code for a person that denies the science that supports trans people.
You cannot be gender critical. Being LGBT is a congenital condition. (developed before birth) Science is finding more evidence for it, every day.