This lady would just say “yeah, my beliefs are a myth, and so are yours. So what now?”
For the post-modern left it all comes down to power. Words and ideas are just ways of channeling power — whether they are true in the conventional sense is totally beside the point.
That’s why she can tell you her truths are untrue without any shame. The only truth to her is that she and her friends can change your behavior by getting all up in your face. She believes in changing the system by sheer will and direct action, unhindered by, and not really even paying attention to, or even having utter contempt for, notions of reason and principle and truth.
Very well stated.