I had another last night - they happen occasionally - and woke up with a whole list of things I'd say in the situation if it was true.
Mine was about an educational establishment doing diversity training, and I stood up and heckled during an egregious bit of gender woo, pointing out that it was wrong to teach theory as fact. I accused the woman (for of course it was a straight white woman who had the bright idea of doing the training) of introducing divisive and regressive nonsense to young minds. It was quite satisfying.
Have you ever had a TERFy dream?