Edit for context:
My view is transracial isn’t valid and this person is trying to dogwhistle. I’ve already blocked this person, and now they’re going after my friend saying my friend is transphobic because they disagreed with them about transracial being a thing (they’re purposefully leaving the context out so my friend looks transphobic when what my friend really said was transgender is valid but transracial isn’t)
Don’t waste your time, if someone is claiming transracialism then they are way too far gone and it’s not your job to understand or fix people that can’t be fixed or understood. Every interaction with that person will equate to a net loss on your life and time, they will hit the wall of reality eventually or die a joke.