You're welcome glad I can help! Yes, it's enraging, but so very necessary to understand and recognize the machinations of the "dominant caste" when you see it, in order to NOT become them, but to be way better humans than they ever were.
Trust me, just like you in the UK, we've ALL been lied to about white crimes through their so-called "education." And it continues here in the US, so much so -- they're banning and removing books from schools and libraries by, and about us "Others," that don't support their lies. Feels like Nazi Germany all over again.
You probably won't see Myrna again, because you were able to destroy her lies with your truth. That's always the best way to deal people like her! I hope your family's safeππ΅πΈ