It is a straw man (should I say straw person, lest the bundle of straws identifies as female and is offended?) argument to deliberately misconstrue gender critical viewpoints as being anti transperson. Being critical of a movement does not imply disgust or hatred of those people who are involved in such a movement.
Gender critical doesn't mean everyone should be androgynous and dress only in beige, yellow and green so as to avoid any gender signifiers.
Gender critical doesn't mean everyone must adhere to the gender role which matches their genitals.
Gender critical believes that a spectrum is not so far from a binary, after all, it still has two ends. It is still harmful, it doesn't blur anything, it reinforces it.
Can we stop fighting? We all want the same thing. A world free of gender based expectations.
We do need to still talk of men and women. We can't erase that when sexism is still so rife. But this refers to biology, not identity. It is incredibly privileged to believe that sexism is so outdated or minor that we can erase discussion of it in this way. That is true of ALL of us in the West, in rich, developed countries where we have legislation to protect women and girls. (Which, by the way, would be meaningless if we are no longer allowed to talk about women and girls)
Do baby girls left to die of exposure have cis privilege? Do six year olds being subjected to FGM without anaesthetic have cis privilege? Does a woman suffering life-threatening complications of childbirth due to historic FGM have cis privilege? Female refugees fleeing their home country currently being attacked and raped - including children, by the way, - with alarming regularity in refugee camps and by (some) of the MALE soldiers who are supposed to be helping them, do they have cis privilege? How about girls who are married at nine years old, or denied education, given HIV deliberately because somebody believes sex with a virgin is a cure, or to have their breasts painfully ironed flat because their mothers are afraid that if their breast tissue develops, they might get raped or be a target for early marriage and pregnancy and hence not be able to continue their education? Privilege? Because their life would be so much more difficult if they were male inside? Get real. As if they have the brain space to pontify over gender when at risk of disease or rape or ambition-ending pregnancy or repeated rape or injury or death.