I read a thread on MN just over a year ago that was to do with Maria Miller's bill. The thread author explained the implications really really well, without emotion or prejudice, and made me investigate the whole thing for myself.
I mentioned it to a few lefty (some gay) male friends at Easter on a weekend away, they weren't terribly interested and thought it ludicrous to believe that any male would self id to get access to women. I thought maybe I over-thinking this (older males = better brains, obviously 🙄)
When the Lily thing blew up, (and Anne being bullied out), I peaked, and I publicised it. Those nice male friends pretty much destroyed me on social media (without naming me, but whispering around all our mutual friends)
Since then, i have a new anonymous Twitter account, Ive been to a WPUK meeting, much more active on here, defriended lots of people, and no longer give a shit about saying PENIS and VAGINA quite loudly when needed
DH is on-side but will never be vocal about it, and my lefty commie anciently feminist mum has also come round from "all trans people are as lovely as Jan Morris" to "oh gosh, thats a bit much" 
Sorry for the outpouring. Need gin 