If your mother is married to your father and your father is a Kenyan muslim, and you are born in Kenya, you are a Kenyan muslim.
One parent does not suffice for US citizenship. Else every Thirdworldistani mother would claim that a US serviceman (or tourist) was the daddy.
If he were born on American territory,with one parent American that suffices.That is also the question:was Barack H. Obama II born on American territory.
“One parent does not suffice for US citizenship.”
I’m afraid you’re mistaken on that one.