That sounds truly grim, Datun.
I would include the problem[s] with 'cis', most importantly (for me) the way that it puts women into a category of "identifying" with the restrictive, oppressive gender expectations associated with girlhood/womanhood, when in fact refusing to submit to or limit oneself or other girls and women to those expectations is the essence of feminism itself.
I think it's important to demonstrate to well meaning liberals all the ways in which trans ideology is hyper-individualistic and destructive to solidarity among female people as a class. It's about reinforcing the gender prison and reframing it as "privilege," while attempting to identify yourself out of it - whether as a transman or as a man appropriating womanhood but without the stain of 'cis-privilege' - on the basis of not being like all those lesser females who identify with being second class.
Thinking critically, does it make sense to say that women can live, dress, think and behave any way they wish to, (and this is precisely what our grandmothers and mothers struggled and sacrificed to make possible for us and for our daughters), and also, to say that there is such a thing as "thinking like a woman," "feeling like a woman," "living as a woman"? Are these helpful concepts to perpetuate? If these two ideas of womanhood (a biological state of being which will have a significant bearing on a person's life experience, but need not be the determining factor in one's personality traits, interests or aptitudes? Or a set of gendered behaviours and performative femininity which render the reproductive system irrelevant to the experience of womanhood and turn a penis into a 'ladystick'?) If these two understandings of what womanhood is, are incompatible, (and they are), which one do you think is the fallacy?