I find it funny when people quote sources selectively. Rambam thinks this of Xians (while living among Muslims), while others said something else. Why not lists those who are on both sides, and then explain why your conclusion is the majority? (I know I sometimes quote Rambam only, but this is just because I don’t know much and also respect Rambam’s approach – and Rambam wrote short books for people like me).
Also, on this issue – there are different versions. Rambam writes about Catholics. There are Orthodox who simply follow Russian tzar or seretary general, there are various Protestants who believe either in more abstract things or in nothing at all. There are non-Jews who classify themselves as Reform Jews – what is their status?