It's not just protestants. The Catholic Church also teaches that Mormons are not Christians, because they don't have valid baptism[1]. I wouldn't be surprised i

It's not just protestants. The Catholic Church also teaches that Mormons are not Christians, because they don't have valid baptism[1]. I wouldn't be surprised if the Orthodox teach the same, but someone else will have to speak to that. [1]https://www.catholic.com/qa/why-doesnt-the-catholic-church-accept-mormon-baptism https://www.catholic.com/qa/why-doesnt-the-catholic-church-a...