I don’t think you could define this as strictly not racist, since “race” constitutes arbitrary characteristics decided upon largely by white hegemony. It’s how Africans became a singular black race despite being different cultures and language groups. It’s why Jews are sometimes white, sometimes not.
It’s absolutely why most Americans consider a native Spanish speaker a different race, no matter how white they are. We’re in a moment where being Muslim is a racial marker excluding a person from whiteness.
Here’s a trick I do. Go show an uniformed white American a picture of Bashar al-Assad. Every time I’ve done this, they’ll say he’s a white guy. Then tell them he’s the president of Syria and a Muslim. They instantly flip.