Biologically speaking, there is only one human race

The colloquial term for a group with common physical features is race. That biologists have a different technical meaning isn't relevant. If you deny that people categorize others and call it "race" then you deny racism.

Racial:

"relating to the major groupings into which humankind is sometimes divided on the basis of physical characteristics or shared ancestry."

I’d argue its meaning had transcended its original linguistic root.

But this is religious discrimination. I've already shown that neither ethnic group nor racial group matters in this situation.