I think these tags are important.
When I was with transfeminist circles I saw these posts all the time and it was a super effective guilting tactic. I kept several MTFs in my mutual circles way too long after they started going on aggressive screeds against "TME"s (which I wasn't even against at the time due to said transfeminist conditioning), doing kink shit I'd normally block people over on-sight, and making comments like "I don't agree with ISFF but the construction of the pedophile is used to oppress us"... because I was afraid I'd look like a transmisogynist excising them from my social circles. So, with the other transbians on the site, they continued to get worse in ways none of my other mutuals did and my dash became insufferable lol.
I am reminded of the minority tolerance phenomenon. As a trend, people become less bigoted towards a minority group the more they interact with members of said group inter-personally. This isn't to say minorities will have no problems in non-minority friend groups, but that as a trend they become more liked the more familiar a majority gets to them, because it becomes clear they are just normal people with harmless differences like everyone else.
This makes this whole thing a real outlier. Trans women getting in social groups *while* already out as trans women (so there's no "coming out as gay and being kicked out of a friend group" bias happening), becoming friends with the people there, and then being expelled again and again, well... That's not really typical?
If the problem is "trans women are seen as gross and weird and everyone is always looking for a socially acceptable reason to call them gross and weird", why is this superficial barrier of "difference", being perceived as "gross and weird", not diminishing as the MTF befriends the circle, and prolonged interaction makes people see that he's actually pretty normal? That's generally how it is for gay people.