I can break this down in 3 parts:

A. It is actually much worse than @archetypelady's example below this tweet. The "circumgender" idea was discarded as offensive early on. The reason for this is that women were essentially identifying as FTT (female to trans) or FTF (female
1/ https://twitter.com/ZealousJustin_/status/1305250451525439488

to femme/female to female.)
The idea was to reject the gender that had been "assigned" to them & embrace femininity on their own terms, as a kind of drag of sorts. (Of course this is all silly, but that was the idea). The reason this is unacceptable to the trans scene was:
2/

B. While "trans women are women" (as we are constantly reminded), they also occupy a special place that is only for TW. This is why "TWAW," and yet, they must be represented in film (instead of just being represented by, you know, women!), & why they demand a separate sort of
3/

attention for being slaughtered in massive numbers due to transphobic violence (they are not. The VAST majority of homicide against TW involves those in "high risk" lifestyles, ie, prostitution, theft, drug dealing/using, etc, and women both in and out of these lifestyles are
4/

raped and murdered at a much, much higher rate. Further, TWs COMMIT violent crimes at the same rate as the male population).
And so, while TW must be recognized as having a special, different, separate experience that no female could ever truly understand,
5/

women are forbidden from claiming the logical and evident corollary to this: that THEY, therefore, have a different life experience from TW, and are in need of separate spaces/services from TW (like prison cells, rape shelters, support groups, bathrooms, sports teams, etc)
6/

And so, when women claimed that they were FTT/FTF, that they had disidentified/reidentified with "femininity" and therefore were effectively "transwomen," this was met with outrage- because although gender is supposedly fluid, and only you can identify your own gender, & you
7/

must respect everyone's personal sense of identity and their journey etc etc ad nauseam, what women were doing was saying "TW understand the experience of being women, and I understand the experience of being TW." This undermined the entire narrative of TW totally
8/

dominating the discourse around all this daffy bs.
And so, speaking of daffy bs, we return to the OP above, and
C. Calling themselves "cis" is already happening. There is absolutely no frontier, no boundary, no space they will not violate, and so of course this has happened.
9/

There's a TW who is trying to join a Catholic order of nuns, there are TW who demand examinations by gynecologists (even if the examination of a surgically constructed masturbation pocket is necessary for health, and it probably is given all the things that go horribly wrong
10/

with those surgeries, it is still not a PAP smear because it is impossible for a TW to grow a cervix regardless of how many hormones they take), and so of course they refer to themselves as "cis" even when they aren't "stealth" (lying to every single person they meet in an
11/

attempt to conceal their sex). Another popular phrase is that a TW is "a woman with a trans history." It's all about violating women on every possible level, and so it's completely in line with their own ideology and terminology.
12/12

PS: I also want to say that while there is a lot of this predatory and duplicitous behavior in these genderist scenes, the "community" is rife with many, many, many "trans" victims of abuse (sometimes at the hands of these sorts of people). It is a perfect storm of pathological

sadistic types and EXTREMELY vulnerable, mentally ill people who make perfect prey. Please pray for all involved

Also I probably should have put asterisks in many words throughout this thread, but oh well. If my account disappears, you all know why