I think there is enough ambiguity to give Jews good reason to doubt Jesus was their Messiah. Then for Christians, they have good reasons to doubt Islam and the Baha'i Faith. So for sure, the Baha'i writings say that there has been a succession of manifestations sent by God. And the Baha'is Faith gives us an important reason as to why God had to send Muhammad, the Bab and Baha'u'llah... And that is to correct the errors in Christian doctrine. Which include that Jesus is God. Others, even the Protestants "corrected" the doctrines that they thought were errors made by the Catholic Church... Like original sin and the immaculate conception of Mary. But they kept the doctrine of the Trinity, and that's one of the main ones that Islam and the Baha'i Faith says is wrong.
But the Baha'i Faith also does away with Satan as real spirit being. And that's why I mentioned the Christian belief in Satan/Lucifer. If the Baha'is are correct, then Christians took Bible verses and concocted a story about Lucifer to fill out the story about Satan. And maybe borrowing some concepts from other religions of the time and added them in to their beliefs about Satan. Here's a Baha'i quote about Satan
God has never created an evil spirit
; all such ideas and nomenclature are symbols expressing the mere human or earthly nature of man. It is an essential condition of the soil of earth that thorns, weeds and fruitless trees may grow from it. Relatively speaking, this is evil; it is simply the lower state and baser product of nature.
‘Abdu’l-Bahá, Foundations of World Unity, p. 77