Transgender Exclusive Radical Feminist. It's a rabbit hole. The tl;dr is that a long time ago I wrote this blog post, which I still think is pretty reasonable and nuanced but challenges a mainstream leftist perspective, and they're still mad about it. https://archive.ph/vgTBH 

 It's actually kind of cringe because I was still in between perspectives then so it has more virtue signaling than I would write today. But the general idea, I still basically agree with. 

 I would agree it is quite nuanced and reasonable