like, fuck terfs, fuck the anti-trans movement, but the connection between the anti-trans movement and fascism is framed in this suuuuper abstract way that no meaningful definition of fascism would allow. It kind of just makes fascism sound like "statism."
There are plenty of terfs (again, fuck terfs) who are not calling for government action, but trying to exclude trans women from feminist spaces on non-governmental levels, arguing for a limiting social or academic definition of feminism or of a woman and holding exclusionary events. Fascism is an incorrect label for that behavior.
Furthermore, to call terfs fascists implies that they are generally for other things fascists are for, like a command economy, which I don't think is common.
And to be clear, there is an overlap between terfs and fascists, and an even bigger overlap between anti-trans people in general and fascists. We all know the Nazis fucked up a lot of good gender research, but they were never pretending to be feminists.