Good on you for trying to hold people to a higher standard. What makes them acting that way “un-American”, and what does that term even mean? Is there a certain essence or way of being that is truly American?
I would argue that racism is in fact in the DNA of America. We were a country built on slavery and the genocide of Native Americans. Racism has been with us every step of the way. Challenge people to be better than that, but envoking nationalism doesn’t do much to achieve that. Truly challenging racism means seeing our whole species, no matter where they were born in the world, as our brothers and sisters. Nationalism actually erodes a broader view of solidarity with others.