Good lord, it is not about blaming.
You seem to be incapable of seeing things outside of abstract political alliances.
Members of this group, whatever their politics, are people. They have families and children whom they love. They have wives, mums, sisters, some may be women themselves. Some of their actual kids may actually be affected by things like schools transitioning them. Or they are struggling to get help to access non-affirming care. Or are worried about having a woman to care for their old mums.
Actual people.
They have every right to engage both intellectually and in terms of political activity in order to oppose these threats to themselves and their kids.
PP's movement isn't some feminist power grab, it is to help actual people, their actual kids, and actual mums. So they are welcome to come to her meetings, to listen or share their relevant experiences as women.
Your view that it is ok to suppress people's basic participation in society because of wrong-think - even real shit ideas - is like nothing so much as the practices of the Soviet or Maoist states.
You are ironically on this thread giving everyone a clear view of the mind-set that leads to that kind of society, which is at least as fucking scary as a truly fascist state. You aren't convincing anyone to do anything but run further away from the LP and the left in general.