A recurring theme on these boards (the Sam Smith thread being the latest) is the observation that people that otherwise see themselves as virtuous see no problem with aggressively going after women who go against some element of their ideology.
This applies to TRAs, Momentum, the Woke in general etc.
I've been trying to work my way through 'The Gulag Archipelago' for a while. It's hard going but worth it because of the gems uncovered. I think he below is spot on and, while it applies to many, many groups, it's particularly relevant to those mentioned above.
Essentially, if you fight 'evil' by defining other external individuals and groups as evil and fighting them then there is no requirement for introspection and self-examination. Hence, while I'm sure that some of the leaders are cunning game-players, a lot of their followers would be (and are) genuinely shocked at the idea they're doing anything wrong.
'If only it were all so simple! If only there were evil people somewhere insidiously committing evil deeds, and it were necessary only to separate them from the rest of us and destroy them. But the line dividing good and evil cuts through the heart of every human being. And who is willing to destroy a piece of his own heart?'
(Sure it's a well-known quote but I think it's worth dusting off every now and again).