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)
To quote the first paragraph of the Wikipedia article on Race (human categorization):
Physical traits are passed through genes onto kids, thus kids have much the same traits as their parents. Asian parents have asian kids. Why are we doing elementary biology here?
This really isn’t the argument we should be latching onto.