Yes, this was mob of disrespectful, intrusive men taking advantage of the situation, as men often do. I agree with you on this and I'm not sure why you read my comment as acceptance of their behavior.
However, if the organizers want to avoid this mass incursion of males at next year's event, they need to learn from the policy failure that enabled it this time round. It's not like men are suddenly going to learn to behave themselves honorably, there need to be clearly defined boundaries that prevent abuse. As an important part of that, any policy that prioritizes declarations of 'gender identity' over the reality of being female really needs to be got rid of.
I mean, women at the event reported being pushed out of the way and hurt by men barging past them. So clearly everyone is well aware of who the men are despite whatever 'gender identity' they might claim.
But it's difficult to speak out about it when policy is actively working against you: the code of conduct for the event stated "unacceptable behaviors include ... offensive verbal comments including as related to ... gender identity" which effectively bans any attendee from pointing out the obvious, and pressures women to ignore their natural instincts, lower their personal boundaries, stay silent in their discomfort, and basically just be nice and tolerant and accepting of the injustice they see before their very eyes.