You put forth this marvelous, elaborate thought experiment whereby Rosanna and Amy cruise the religious controversies of worldwide blasphemy laws but leave no room for the possibility of googling Ilhan Omar. The prejudice you're hiding is the assumption that anyone from Somalia supports Sharia law.

Ilhan Omar fled Somalia at 6 in 1986. Her grandfather was a minister in the Somali Democratic Republic, the country that collapsed into Blackhawk Down. She spent four years in a refugee camp in Kenya before coming to the US where she got involved in student government and education before she sat for her citizenship test at 17. She's never not had a professional position about female empowerment.

But because she wears a hijab we immediately start talking about Sharia law and its applicability to the United States.

It's not racist to assert that anyone who wears a hijab wants to spread Sharia law, regardless of the utter lack of evidence supporting that position. It's uneducated and prejudicial, sure but not demonstrably racist. What's racist is not assuming the same of Cat Stevens or Ellen Burstyn.